A 2 kg block slides down a frictionless incline of height 5 m. It then compresses a spring with spring constant 800 N/m. What is the maximum compression of the spring?
A spring with spring constant k is compressed by distance x and used to launch a block of mass m horizontally on a frictionless surface. What is the initial speed of the block as it leaves the spring?
A force F does work W on an object over a displacement d. If the force is doubled and the displacement is halved, what happens to the work done?
An object is lifted vertically with constant power P. If the object's mass is doubled, what happens to the speed at which it can be lifted?
A 1000-kg car accelerates from rest to 20 m/s in 10 seconds. What is the average power output of the engine during this time?
A 5 kg box is pushed across a floor with a constant force of 30 N over 4 meters. If the box moves at constant speed, how much work is done by the force?
A 10 kg block slides down a 30° frictionless incline starting from rest. What is its speed after sliding 5 meters along the incline?
A 2 kg object moving at 4 m/s collides with a spring of spring constant 200 N/m. What is the maximum compression of the spring?
A 3 kg object is lifted vertically 10 m at a constant velocity. What is the work done by the lifting force?
An engine delivers a constant power output of 500 W. How long does it take to do 2000 J of work?
A 4 kg object is moving at 3 m/s. What is its kinetic energy?
A 1.5 kg mass is attached to a spring with spring constant 120 N/m and is stretched 0.1 m from equilibrium. What is the potential energy stored in the spring?
An object is pushed by a force of 50 N over a distance of 3 meters at an angle of 60° to the horizontal. What is the work done by the force?
A 10 kg block moves with velocity 5 m/s and collides with a spring of spring constant 500 N/m. What is the maximum compression of the spring?
An elevator lifts a 500 kg load to a height of 20 m in 25 seconds. What is the average power output required by the motor? (Take g = 9.8 m/s²)
A 2 kg object is thrown vertically upward with an initial speed of 10 m/s. What is its kinetic energy at the highest point?
A force of 15 N acts on a 3 kg object initially at rest. What is the work done after the object moves 4 meters in the direction of the force?
An object of mass 5 kg moves with a velocity of 8 m/s. What is the power output if the object comes to rest uniformly in 4 seconds?
A 12 kg block slides down a 25° incline. What is the work done by gravity when the block slides 6 m down the incline?
A force of 20 N is applied at an angle of 30° above the horizontal to move a box 5 m on a frictionless surface. How much work is done by the force?
A 3 kg object is pulled by a force of 10 N at an angle of 45° over a distance of 4 m. What is the work done by the force?
An object with mass 5 kg moves with velocity 10 m/s. What is the kinetic energy?
A spring with spring constant 200 N/m is compressed 0.15 m. What is the potential energy stored in the spring?
A 6 kg block is pushed across a frictionless surface by a force of 18 N for 3 seconds, starting from rest. What is the work done by the force?
An elevator motor does 20,000 J of work lifting a load to a height of 5 m. What is the mass of the load? (Take g = 9.8 m/s²)
A car with mass 1500 kg accelerates from rest to 20 m/s in 10 seconds. What is the average power output of the engine during this acceleration?
A 4 kg box is pushed across a rough surface with coefficient of kinetic friction 0.3 by a horizontal force of 20 N. The box moves 5 m. How much work is done by friction?
A roller coaster car of mass 500 kg descends from rest at the top of a 20 m hill. Ignoring friction, what is its speed at the bottom?
A force of 50 N is applied to a 10 kg box, causing it to accelerate at 3 m/s². What is the power output when the box reaches a velocity of 6 m/s?
An object of mass 8 kg is lifted vertically with a constant speed to a height of 3 meters. What is the power output if this is done in 4 seconds?