An object is attached to a light string and is forced to move in uniform circular motion on a frictionless table. The radius of the circular path is 0.5m and the maximum amount of tension the rope can withstand without breaking is 16N. What is the maximum amount of kinetic energy this object can have?

Justin, with a mass of 50 kg, is going down an 8.0-m-high water slide. He starts at rest, and his speed at the bottom is 12 m/s. How much thermal energy is created by friction during his descent? Eth=

A running 50-kg cheetah has a top speed of 30 m/s. (a) What is the cheetah's maximum kinetic energy? ____J (b) Find the cheetah's speed when its kinetic energy is one half of the value found in part (a). ____m/s

What is the potential energy in J of a bungee jumper standing on a 0.109 km bridge that weighs 85 kg? O9.1 x 104 J '9.09 x 103 J 90889.65 9.09 x 104 J

A block is sent up a frictionless ramp along which an x axis extends upward. The figure gives the kinetic energy of the block as a function of position x; the scale of the figure's vertical axis is set by Ks = 44.0 J. If the block's initial speed is 5.00 m/s, what is the normal force on the block?

Please answer and solve the question correctly. Thank you!

The largest watermelon ever grown had a mass of 118 kg. Suppose this watermelon were exhibited on a platform 5.00 m above the ground. After the exhibition, the watermelon is allowed to slide along to the ground along a smooth ramp. How high above the ground is the watermelon at the moment its kinetic energy is 4.61 kJ?

A sprinter who weighs 639 N runs the first 8.6 m of a race in 1.9 s, starting from rest and accelerating uniformly. What are the sprinter's (a)speed and (b) kinetic energy at the end of the 1.9 s? (c) What average power does the sprinter generate during the 1.9 s interval?

How do you slove?

18. A 25 kg bear slides, from rest, 12 m down a lodgepole pine tree, moving with a speed of 5.6 m/s just before hitting the ground. (a) What change occurs in the gravitational potential energy of the bear Earth system during the slide? (b) What is the kinetic energy of the bear just before hitting the ground? (c) What is the average frictional force that acts on the sliding bear?