A 120-kg car starts at rest and accelerates forward, reaching a velocity of 1600 cm/s in 5 s. What average force delivered by the car's engine? the air resistance is negligible. * 384 kg 38.4 N 0.384 kN 0.384 kg None of the above

Q: The 150-kg block is being pushed by a force P as shown. Determine the total reaction in Newtons. P=…

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Q: How much force is needed to make a rocket move in constant velocity in a frictionless outer space?…

A: If a rocket moves with constant velocity, its acceleration will be zero.

Q: A constant force of 4.5 N acts on a 7.2-kg object for 10.0 s. What is the change in the object's…

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Q: Two bows, A and B, are used to fire arrows X and Y respectively. The average force bow A exerts is…

A: SOlution: Given that Two bows, A and B, are used to fire arrows X and Y respectively. The average…

Q: A glider strikes a 0.075-kg block so that its velocity changes by +35 m/s in 0.070 s. With what…

A: Given data:  Mass (m) = 0.075 kg Change in velocity (Δv) = +35 m/s Time (t) = 0.070 s Required: The…

Q: Possible choices: A. The force exerted by the semi-trailer truck on the compact car is larger than…

A: When to object collide then the force is know as the impulsive force and it can be written as, i.e.…

Q: 4. A car moving at 20.0 m/s crashes into a tree. Find the magnitude of the average force acting on a…

A: Given:           initial speed = 20 m/s                mass = m = 65 kg                Force =…

Q: Rank the automobiles based on the magnitude of the force needed to stop them, from largest to…

A: As per the given data, There are six cars. Lets rank them as A,B,C,D,E and F starting from left to…

Q: A 2550 kg car traveling to the north is slowed down from an initial velocity of 19.5 m/s by a 5750 N…

A: Using newtons second law  Fnet=ma  And using first equation of motion  V=u+at

Q: A car has a mass 260 kg travling with the velocity 20m/s after traveling time 20 sec the velocity of…

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Q: Mike pushes a box with a mass of 5.87 kg giving it an initial velocity of 2.18 m/s. The box comes to…

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Q: A diver with a mass of 110 kg on a high board 10.0m above the water’s surface dives off the board…

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Q: A force produces 3 m/square second acceleration to a 4 kg ball. The mass of the ball whose…

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Q: 71. The 50-kg crate shown in figure rests on a horizontal surface for which the coefficient of…

A: mass of crate (m) = 50 kg coefficient of kinetic friction = 0.3 Applied force (P) = 400 N Time (t) =…

Q: A car of mass 1100 kg that is traveling at 27 m/s starts to slow down and comes to a complete stop…

A: Given? = 1100 ?? (mass of the car)? = 27 ?? (initial speed of the car)? = 578? ( traveled distance)

Q: In a Subaru TV commercial, a dog is driving a car of total MASS 1,812 kg.  Suddenly a person runs…

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Q: A glider strikes a 0.075-kg block so that its velocity changes by +35 m/s in 0.070 s. With what…

A:

Q: Mr. Blain van and car have broken down. Because he is so muscular, he decides to pull them to the…

A: Given:- The pulling force is  F = 7000 N  His porche is 500 kg and his van is 1500 kg Find:- What…

Q: A shopper in a supermarket pushes a loaded cart with a horizontal force of 15.0 N. The cart has a…

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Q: A teenager is pushing a cart.  There is no friction between the cart and the ground. Mass of the…

A: (1) From Newton’s 2nd law, Here, m and a represent the cart's mass and acceleration of the cart ,…

Q: Rank the automobiles based on the magnitude of the force needed to stop them, from largest to…

A: Introduction: According to newton's second law of motion, force is defined as the rate of change of…

Q: In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and…

A: Given data:  Initial velocity (Vi) = 0 m/s Final velocity (Vf) = 45.3 m/s Time interval (Δt) = 6.11…

Q: An airplane starts from rest on the runway. The engines exert a constant force of 78.0 kN on the…

A: Given : Initial speed of the plane, u = 0 m/s Final speed at time of take off, v = 64.6 m/s Force…

Q: A model rocket with a mass of 500 grams is launched straight up. It achieves a speed of 20.0 m/s in…

A: First we need to find the acceleration needed to achieve the speed. The acceleration of the rocket…

Q: A 8.0 kg box begins at rest on the ground. The coefficient of static friction between the box and…

A: Given  Mass m = 8 kg  Force F = 50 N

Q: A curling rock of mass 20 kg is sliding along a frictionless ice surface when it strikes a rock half…

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Q: An ice skater(3), mass 20 kg, is sliding on ice (frictionless). Two other ice skaters (1,2) come out…

A: F1 = 5 N @20 degree below the horizontal F2 = 8N@60 degree above the horizontal

Q: A 80 kg person stands on a weight scale in a elevator. The elevator is moving up with a acceleration…

A: Normal force (Apparent weight) will be given by: Apply Net force balance on person: From Newton's…

Q: The graph shows the speed of from breaking at 10 s. a 2360.0 kg car as it slows down after the…

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Q: A constant net force of 700.0 N moves a 1,000.0-kg car 100.0 m. If the car was initially at rest,…

A: Given data: Net applied (F) = 700 N Mass (m) = 1000 kg Distance (d) = 100 m Need to determine the…

Q: A 2150-kg truck is traveling along a straight, level road at a constant speed of 55.0 km/h when the…

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Q: A football player kicks a football with a force of 400 N, north direction. The football hits the…

A: Given : Force by which football player kicks the football = 400 N

Q: 14. Cars that are moving along horizontal roads are going to be stopped by plowing into identical…

A: SOlution: Given that A: m = 1000 kg, v = 6 m/s B: m =1600 kg,  v = 8 m/s C: m =1200 kg, v = 8 m/s 8:…

Q: In Newton’s Third Law, the action and reaction forces   Question 10 options:   A)  are only equal…

A: Required: The facts about the Newton's Third Law

Q: In a performance test, each of two cars takes 8.6 s to accelerate from rest to 26 m/s. Car A has a…

A: From kinematics equation:

Q: Tanya is at rest on a stationary raft. She jumps off the raft with an acceleration of 2.85m/s^2 [W].…

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Q: Anna pushes a 4.2-kg cart with 2.4 N of force that starts from rest. Determine the time taken by…

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Q: A net force of 20 N exerted on a wooden block produces an acceleration of 4 m/s2. The mass of the…

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Q: Rank the automobiles based on the magnitude of the force needed to stop them, from largest to…

A: Formula of force:  F=ma Where, F = Force. m = mass. a = acceleration.

Q: A 1000 kg car and a 2000 kg car are traveling on an icy road, meaning there is low friction between…

A: Given  m1= 1000kg m2= 2000kg Let coefficient of friction is µ

Q: During an autumn storm, a 0.012 kg hail stone travelling at 20.0 m/s made a 0.20 cm deep dent in the…

A: Given Mass m = 0.012 kg Initial velocity u = 20 m/s Final velocity v =0 Distance covered s = 0.2 cm…

Q: 49. A baseball catcher is performing a stunt for a television commercial. He will catch a baseball…

A: Assume that the potential at the glove is zero and the the initial speed of the ball when it is…

Q: A net force of 20 N exerted on a wooden block produces an acceleration of 4 m/s. The mass of the…

A: F = 20 N a = 4 m/s2

Q: A ball with a mass of 0.25 kg hits a gym ceiling with a force of 78.0 N. What happens next?  a. The…

A: Given values-  Mass of ball=m =0.25 kgForce=F =78 N As we know-  Acceleration due to gravity=g=9.8…

Q: The padded dashboard was one of the first safety devices included in automobiles. The padded…

A: The force acting on an object is defined as the ratio of change in momentum to the change in time…

Q: Starting from rest, a 10,000-kg aircraft being launched from an aircraft carrier goes from 0 to 90…

A: Given data The mass of the aircraft is given as m = 10000 kg. The initial velocity of the aircraft…

Q: Dan is gliding on his skateboard at 2.56 m/sm/s . He suddenly jumps backward off the skateboard,…

A: SOlution: given that vi, Dan = 2.56 m/s mDan = 42.1 kg mskatboard = 5.99 kg vf, Dan = 6.22 ms t…

Q: 6.0 kg block rests on a smooth table. It is connected by a string of negligible mass to a 2.0 kg…

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Q: An object is at rest on a table. The earth is pulling this object down with a force of magnitude m ·…

A: Given: An object is placed on the table  Earth pulling this object with a force of magnitude = m.g

Q: A 10-kg body falls from rest, with negligible interaction with its surroundings (no friction).…

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: