A 5.0kg cart is moving at a speed of 6.0m/s and accelerates to a final speed of 10.0m/s. How much work must have been done on this cart during the acceleration?
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A 5.0kg cart is moving at a speed of 6.0m/s and accelerates to a final speed of 10.0m/s. How much work must have been done on this cart during the acceleration?
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- A 4.5kg sled is pulled across level snow with a force of 225N on a rope that is 35 degrees above the horizontal. If the sled moves 65.3m in 2.5 minutes, how much work does the person do on the sled? How much power is exerted on the sled? The person is pulling as hard as possible on the rope. How else can the amount of work be increased?A 0.31-kg particle has a speed of 3.0 m/s at point A and kinetic energy of 8.2 J at point B. (a) What is its kinetic energy at A? (b) What is its speed at point B? m/s (c) What is the total work done on the particle as it moves from A to B?A 899 kg car accelerates from rest up to 26.0 m/s in 6.14 s. What is the average power output of this engine during this time? Number Units (for comparison information there are 746 W for each horse power )
- A cyclist is riding a bike at 6.50 m/s on a horizontal track. The cyclist and their bike have a combined mass of 98 kg. How much work will be required for the cyclist to increase their speed to 10.0 m/s? Give your answer to the nearest Joule. Do not include units in your answer.A 0.32-kg particle has a speed of 5.0 m/s at point A and kinetic energy of 8.1 J at point B. (a) What is its kinetic energy at A? (b) What is its speed at point B? m/s (c) What is the total work done on the particle as it moves from A to B?A 10 kg barbell is rolling down a hill. There is no friction or air resistance acting on it, only the force of gravity. If it starts out moving 2 ms1, and ends up moving 7 ms1, then how much work does gravity do on it?
- A basketball playet makes a jump shot. The 0.600 kg ball is released at a height of 2.08m above the floor with a speeed of 7.31 m/s. The ball goes through the net 3.10 m above the floor at a speed of 4.03 m/s. What is the work done by the ball by air resistance, a nonconservative force ?A 0.59-kg particle has a speed of 5.0 m/s at point A and kinetic energy of 8.5 J at point B. (a) What is its kinetic energy at A? J(b) What is its speed at point B? m/s(c) What is the total work done on the particle as it moves from A to B? JA 19.1-kg box is being pushed from the bottom to the top of a frictionless ramp. When the box is pushed at a constant velocity, the nonconservative pushing force does 58.0 J of work. How much work is done by the pushing force when the box starts from rest at the bottom and reaches the top of the same ramp with a speed of 1.50 m/s? Wnc = Number i Save for Later Units Attempts: 0 of 1 used Submit Answer
- A figure skater slides to a stop by pushing her blades against the ice as shown. The ice exerts a constant force of 200 N on the skater, and the skater stops at 0.6 m. The angle between the force and the skater's direction of motion is 140°. What is the work done on the skater by the ice?A mother pulls her child on a sled across a rough patch of snow. The sled and child have a combined mass of 25kg. The sled’s tow rope is at 42° angle above the horizontal and the mother exerts a force of 65N. If the sled accelerates from rest at 1.5 m/s2 over 15m, what is the work done by friction on the sled?please help me with this