A mass of of 1 kg is moving at 1m/s along a straight path when a...
A mass of of 1 kg is moving at 1m/s along a straight path when a horizontal force of 1 n acts on it for 1 second. by how much does its kinetic engery increase in the 1 second during which the force acts on it?
Homework Answers
The unbalanced horizontal net force on a truck of mass 1500 kg moving along a straight...
The unbalanced horizontal net force on a truck of mass 1500 kg moving along a straight horizontal line at a uniform speed of 25 m/s is: Find the force: Please show work
A force given by F(x) = 2x3 (in N/m3) acts on a 1-kg mass moving on...
A force given by F(x) = 2x3 (in N/m3) acts on a 1-kg mass moving on a frictionless surface. The mass moves from x = 1 m to x = 5 m. Assume all motion is along a straight line. (a) How much work is done by the force? (b) If the mass has a speed of 1.0 m/s at x = 1 m, what is its speed at x = 5.0 m?
An object is propelled along a straight-line path in space by a force. If the mass...
An object is propelled along a straight-line path in space by a force. If the mass of the object somehow becomes twice as much, its acceleration a) doubles b) halves c) stays the same d) quadruples The Newton is a unit of a) force b) mass c) density d) inertia An object's weight may properly be expressed in a) meters per second b) newtons c) kg d) none of the above
An asteroid is moving along a straight line. A force acts along the displacement of the...
An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 4.2× 104 kg, and the force causes its speed to change from 7100 to 4500m/s. (a) What is the work done by the force? (b) If the asteroid slows down over a distance of 2.3× 106 m determine the magnitude of the force.
An asteroid is moving along a straight line. A force acts along the displacement of the...
An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 5.4× 104 kg, and the force causes its speed to change from 6500 to 4500m/s. (a) What is the work done by the force? (b) If the asteroid slows down over a distance of 2.4× 106 m determine the magnitude of the force.
1. I drag a mass m = 21 kg in a straight line, along a horizontal surface,...
1. I drag a mass m = 21 kg in a straight line, along a horizontal surface, a distance D=23 m . I drag it at constant speed v = 0.90 m.s^−1 in a straight line using a horizontal force. The coefficients of friction are μs = 1.2 and μk = 1.1. How much work do I do? W = _____ J . ( Retain accurate values until the final calculation, but remember significant figures. ) 2. A rubber band has mass m...
8. A car (mass - 1221 kg) is moving along a straight, level road at a...
8. A car (mass - 1221 kg) is moving along a straight, level road at a constant speed of 8.95 m/s. The car then speeds up to 35.6 m/s in 12.4 s. a. How much work was done on the car during this time? b. What was the average power supplied to the car while it was speeding up?
A proton (mass m - 1.67 * 10-27 kg) is being accelerated along a straight line...
A proton (mass m - 1.67 * 10-27 kg) is being accelerated along a straight line at 5.50 x 1012m/s in a machine. If the proton has an initial speed of 7.30 * 108 m/s and travels 3.80 cm, what then is (a) its speed and (b) the increase in its kinetic energy? The figure here shows an overhead view of three horizontal forces acting on a cargo canister that was initially stationary but that now moves across a frictionless...
question 1 A block of mass m is pulled at constant velocity along a rough horizontal...
question 1 A block of mass m is pulled at constant velocity along a rough horizontal floor by an applied force � as shown. What is the magnitude of frictional force? Write your answer in terms of m, g, T, or q. question 2 An 8000-N car is traveling at 12 m/s along a horizontal road when the brakes are applied. The car skids to a stop in 4.0 s. How much kinetic energy does the car lose in this...
A mini train is moving at a constant speed along a straight, horizontal track. The train...
A mini train is moving at a constant speed along a straight, horizontal track. The train consists of an engine, which is in front, and one car that is being towed by the engine by a cable. The engine and car are not touching. There is a coefficient of kinetic friction of between the engine and the track, and between the car and the track. The coefficient is the same for both; it is 0.100. The engine has a mass...
8. A car (mass - 1221 kg) is moving along a straight, level road at a constant speed of 8.95 m/s. The car then speeds up to 35.6 m/s in 12.4 s. a. How much work was done on the car during this time? b. What was the average power supplied to the car while it was speeding up?
A proton (mass m - 1.67 * 10-27 kg) is being accelerated along a straight line at 5.50 x 1012m/s in a machine. If the proton has an initial speed of 7.30 * 108 m/s and travels 3.80 cm, what then is (a) its speed and (b) the increase in its kinetic energy? The figure here shows an overhead view of three horizontal forces acting on a cargo canister that was initially stationary but that now moves across a frictionless...
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