Suppose that you are working in the physics lab and program a computer to exert a certain amount of force on a 3 kg object over a period of time. The force is described as function of time by the given graph. If the object was originally moving at 2m/s [S],what is the new velocity at t=8 s?

Q: Find the acceleration of the 2.0 kg crate

A: Newton's Second Law of motion According to Newton's Second law of motion, the rate of change of…

Q: An applied force of 87.4 N is used to accelerate an object to the right across a frictional surface.…

A: Given: W=43.5 N f=19 N

Q: Im doing physics and I am trying tor figue out how to find out which object a rock that is 5kg or…

A: Write the kinematics equation for the object which are dropped from a height (h=4 m), and solve for…

Q: A 1.5-kg fireworks shell is fired at an angle of 19∘19∘ from the vertical from a mortar and reaches…

A:

Q: Eric has a mass of 45.99 kg. He is standing on a scale in an elevator that is accelerating downward…

A: We are given mass of Eric. We are given that he is standing on a scale in elevator. The elevator is…

Q: Sally has decided to try cliff diving. After falling for 3 seconds, what is her velocity? Assume air…

A: The velocity is, v=atv=gtt

Q: Why Displacement is a vector quantity?

A: Any quantity will be a vector quantity when that quantity will have both magnitude and direction.…

Q: If you were to drop a large log over the edge of the Grand Canyon and it took 6.26 seconds to hit…

A: Using first equation of motion, v = u + a×t Since it is dropped => u = 0

Q: While you are accelerating at a constant rate from rest to 30 m/s in 5.7 s, what angle does the…

A:

Q: A block is launched up a frictionless 37.5 incline. The block travels 1.5 m up (along, parallel to)…

A: Given:-

Q: An object with a mass of 4 kg lies on a rough plane inclined at 20 degrees to horzontal. A force of…

A: The object's free-body diagram is shown below. Here, a denotes the acceleration, μ denotes the…

Q: Another student performs this experiment and gets and acceleration of 0.7596 m/s. You remember from…

A: given that    a= 0.7596 m/s2 g= 9.81 m / s2   sin θ = a/g

Q: Bob pushes on a frictionless cart of mass 12.5 kg and the cart has an acceleration of 11.3 m/s². If…

A: According to Newton second law F= MA HERE F is applied force M is mass of object A is acceleration…

Q: A runaway train car that has a mass of 12500 kg travels at a speed of 5.7 m/s down a track. Compute…

A:

Q: Given: In this pulley system, block A is moving downward with a speed of 6 feet per second while…

A: Given data: Speed for block A vA = 6 ft/s (downward) Speed for block C vC = 18 ft/s (downward)

Q: Joe uses a force of 250N to push a box with a mass of 95 kg up a 8 degree incline. If coefficient of…

A:

Q: 11.0 m Cliff 22.5 m/s

A:

Q: A 320-lb object is released from rest 400 ft above the ground and allowed to fall under the…

A: Introduction Air resistance:- Air resistance is a force that acts against an object when it moves…

Q: If a car of mass 785 kilograms accelerates a a rate of 3.25 m/s2, what is the net force on the car?

A:

Q: A jet aircraft with a mass of 4,550 kg has an engine that exerts a force (thrust) equal to 59,200 N.…

A: Given: The mass of a jet aircraft is m = 4550 kg. Force exerted by the engine is F =59200 N.

Q: A ball of mass 5 slugs is dropped from a height of 800 ft with no initial velocity. The body…

A: This question is based on motion in one dimension.

Q: A never impulse moves at the speed of 400.0 ft per second. What is this speed in miles per hour?

A: Given: The speed of the object is 400 ft/s.

Q: A small 1310 kg rocket applies its thrusters from rest to generate a net force of F = 1510t + 2550…

A:

Q: A jet aircraft with a mass of 4,675 kg has an engine that exerts a force (thrust) equal to 59,400 N.…

A: Data Given ,  Mass of the aircraft ( m ) = 4675 kg Force ( F ) = 59400 N Time ( t ) = 7 s Let ,…

Q: Moana's canoe heads South distance of 97 km then heads due North for 39 km. What is the canoe's…

A:

Q: A jet aircraft with a mass of 4,375 kg has an engine that exerts a force (thrust) equal to 60,400 N.…

A: a) 13.80 m/sec² b) 69 m/sec c) 172.5 m

Q: A small 1650 kg rocket applies its thrusters from rest to generate a net force of F= 1720t + 2660…

A: Given Mass  m = 1650 kg Force F  = (1720t + 2660 ) newtons t = 12 seconds

Q: An object with a mass of 4 kg lies on a rough plane inclined at 20 degrees to horzontal. A force of…

A: Given,

Q: A block of mass m = 5.6 kg is pulled up a 0 = 26° incline as in the figure below with a force of…

A: Given data The mass of the block is m = 5.6 kg The angle of inclination is: θ = 26° The magnitude of…

Q: An airplane reaches a velocity of 80 m/s when it takes off. If the runway is 1 km in length, what…

A: Acceleration can be found by using equation of motion .

Q: A block slides at constant speed down the incline (see Figure 1.8) (A) How large is the friction…

A:

Q: An Atwood's machine with a frictionless pulley has mass1 = 8 kg and is accelerating up at 3 m/s2.…

A: Given Data Mass of one object is m1=8 kg Acceleration of the masses is =3 m/s2 directed upward. Let…

Q: A small 1130 kg rocket applies its thrusters from rest to generate a net force of…

A: Given data: The mass of rocket is m=1130 kg. The force generated is F=1810t+2950 N. The initial…

Q: A girl delivering newspapers covers her route by traveling 3.00 blocks west, 4.00 blocks horth, and…

A: Displacement is defined as the shortest distance between initial position and final position of an…

Q: What is the acceleration (m/s2) for an incline with an angle 57.5 degrees?

A:

Q: A small 930 kg rocket applies its thrusters from rest to generate a net force of F=2260t+2630…

A:

Q: A car travels due east and slows from 20 m/s to 5 m/s. In what direction is the net change in…

A:

Q: A book which has a velocity of 3.61 m/s in the horizontal direction slides off the edge of a table…

A:

Q: A 3190.27 kg car crashed to a 508.43 lbs motorcycle which is at rest, throwing it to accelerate at…

A: Given: mass of the car (m2) = 3190.27 kg =  motor cycle mass (m1) = 508.43 lbs => 508.43 / 2.20…

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!