a car of mass 2.0*10^3 kg is initialy moving at 21 m/s when the brakes are applied and the car is brought to stop in 25m. Assuming the force that the stops the car is constant, find the magnitude of that force that stop the car?

Q: A 970 kg car is puling a 290 kg trailer. Together, the car and trailer have an acceleration of 2.22…

A:

Q: An object accelerates at 4m/s2 due to a 20N force applied to it. (a) What amount of force is needed…

A: Given data: Magnitude of acceleration is, a=4 m/s2. Magnitude of applied force is, F=20 N.

Q: A 5000 kg car is travelling north at 31 m/s. What net force is required to bring the truck to a stop…

A: Given that:- Mass of car=m=5000kg

Q: A 40-kg trunk sliding across a floor slows down from 5.0 to 2.0 m/s in 6.0 s. Assuming that the…

A:

Q: A mass m kg is acted upon by a constant force of P N for T sec. In this time interval it moves to a…

A: Mass = m kg Force, F = P Newtons  Time interval , t = T sec Distance covered , S = X meters Velocity…

Q: A 103 kg fullback runs at the line of scrimmage (a) Find the constant force that must be exerted on…

A: Given Data:Mass Distance Time

Q: If a car is traveling due westward with a constant speed of 20m/s, what is the resultant force…

A: Given  Speed v=20m/s

Q: A 1500 kg car is driving at 20 m/s. The driver wishes to stop over a distance of 30 m. What force…

A: Mass of car = 1500kg Initial velocity of car =20m/s Final velocity of car=0 Discover covered by…

Q: The Distance Travelled By A Moving Body Is Directly Proportional To Time. Is Any External Force…

A: By the second equation of motion : S= ut + 12 at2 S is directly proportional to the time only when…

Q: a body mass of 2 kg. is dropped with no initial velocity and encounters an air resistance that is…

A: Given: Mass of body, M = 2 kgInitial velocity, u = 0 m/s The object encounters air resistance that…

Q: The driver of a 1000 kg car travelling at 30 m/s slams on its brakes. If the force of friction is…

A: Given that, The mass of a car, m = 1000 kg The initial speed of a car, u = 30 m/s Then the car…

Q: At the airport, you observe some of the jetsas they take off. With your watch you find that it takes…

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Q: How much force is required to accelerate a 2000 kg bus at 2 m/s^2 if the friction is negigible

A: Given data:  Mass (m) = 2000 kg Acceleration (a) = 2 m/s2  Frictional force is negligible  Required:…

Q: 2000 kg car is slowed down uniformly from 20.0 m/s to 5.00 m/s in 4.00 s. (a) Calculate…

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Q: 2.7. It is reckoned that the driver of a vehicle with good brakes on a dry road may take a distance…

A: Given:-  speed of the car is u = 50 km/h =13.89 m/s  After applying break the car stop after…

Q: An 80.0-kg passenger in an SUV traveling at 1.00 × 10³ km/h is wearing a seat belt. The driver slams…

A: We have to determine the force of the seat belt on the passenger.

Q: On aircraft carriers, catapults are used to accelerate jet aircraft to flight speeds in a short…

A: Given that, On aircraft carriers, catapults are used to accelerate jet aircraft to flight speeds in…

Q: What will be the velocity of the ski jumper at position B if she starts from rest at position A?…

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Q: A car starts from rest at the top of path 30 m long and inclined at 20° to the horizontal. Assume…

A: Given data: Initial velocity of car is, u=0 m/s.                                            (As car…

Q: A 116 kg fullback runs at the line of scrimmage. (a) Find the constant force that must be exerted on…

A:

Q: An engine exerts a force of 8000 N on a 1000 kg car travelling over a flat road (with coefficient of…

A: Given data:  Force applied (F) = 800 N Mass (m) = 1000 kg Initial velocity (u) = 25 m/s Final…

Q: A man wants to cross the river in a fixed speed boat. If the river crosses in minimum time It takes…

A: The two cases are drawn as follows.   Let Vboat be the velocity of the boat, Vriver be the velocity…

Q: What net external force is exerted on a 1500-kg artillery shell fired from a battleship if the shell…

A: The mass of the artillery shell is, m=1500 kg   The acceleration of the artillery shell is,…

Q: pilot deploys a braking parachute with 10 m² area. calculate the maximum deceleration rate and…

A: The weight of the military aircraft,  W=mg=8000×9.8=78,400N  (acting downwards)velocity, V=350…

Q: 68. A rocket of mass 4.5 X 10 kg is accelerating straight up. Its engines produce an upward thrust…

A: According to the Newton's second law , the vertical net acceleration of the rocket is calculated by…

Q: In Newton's second law experiment, If the trolley travels from rest a distance of 0.52 m in 1.5s,…

A: We know the kinetic equation, S = ut + (1/2)at2 Where, S is the distance traveled by a body in time…

Q: An oil droplet, mass 0.2 g, falls from rest in air. For a velocity of 40 cm/sec, the force due  to…

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Q: In a pandayan (foundry), a pot made of cast iron slid and came to a complete stop a surface also…

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Q: An object is moving at 50 m s–1 north. A southerly force acts on it, producing an acceleration of 20…

A:

Q: A 101 kg fullback runs at the line of scrimmage. (a) Find the constant force that must be exerted…

A: Given that :m=101 kg△x=1.1 mt=0.28 swhere,m→mass of fullback△x→distance covered by himt→time…

Q: An electron of mass 9.11  10-31 kg has an initial speed of 2.00  105 m/s. It travels in a straight…

A:

Q: The acceleration of the car is 2.5 m/s^2.the mass of the car is 6.8 kg what is the force act on the…

A: The mass of the car is  The acceleration of the car is Find:What is the force acting on the car?

Q: A body is thrown upward with an initial speed of 50ft/s. Find the time required for the body to…

A: Given data- Initial speed u=50 ft/s, upward  The time required for the body to attain a speed of 20…

Q: Two blocks A and B of the same mass 0.73 kg are released from rest on a 26.2° incline when they are…

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Q: You accelerate upward in an elevator which increases its speed from rest to 2.50 m/s in a time of…

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Q: bus accelerates from rest until it reaches a speed of 1000 m/s. Assuming 50 s elapsed and the bus…

A:

Q: How long would it take for a net upward force of 100.0 N to increase the velocity of a 50-kg object…

A: Force is mass times acceleration.  Force and mass is given acceleration can be found using Newton's…

Q: A 200-b object is released from rest 600 ft above the ground and allowed to fall under the influence…

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Q: the same elevator, determine the maximum number of people (50 kg each) it could accelerate upward at…

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Q: An object accelerates at 4m/s2 due to a 20N force applied to it. (a) What amount of force is needed…

A: Let the acceleration of object is denoted a1 and the applied force is denoted as F1. Evaluate the…

Q: A 20-kilogram object resting on a horizontal frictionless surface is subjected to two forces: F₁ =…

A:

Q: A truck of mass 2.40 * 103 kg is moving at 25.0 m/s. Whenthe driver applies the brakes, the truck…

A: The velocity of the truck at the time when the driver applied the brakes v1 = 25.0 m/s Final…

Q: A boat weighing 1.5 tons, starting off, for some time reaches a speed of v = 5 m / s (assume that…

A:

Q: 8. (Physics) A ball of mass m is tossed upward from a building at height h with initial velocity v.…

A: Given, mx" = -mg x(0) = h x'(0) = v To find: x(t) = (-1/2) gt2 + vt + h

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: