Answered: 18. A 25 kg bear slides, from rest, 12… | bartleby

Related questions

Question

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?

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

Please answer it within 30 minutes.I will upvote!
During a rockslide, a 440 kg rock slides from rest down a hillside that is 500 m long and 300 m high. The coefficient of kinetic friction between the rock and the hill surface is 0.32. (a) If the gravitational potential energy U of the rock-Earth system is set to zero at the bottom of the hilI, what is the value of U just before the slide? (b) How much energy is transferred to thermal energy during the slide? (c) What is the kinetic energy of the rock as it reaches the bottom of the hill?
During a rockslide, a 390 kg rock slides from rest down a hillside that is 460 m long and 300 m high. The coefficient of kinetic friction between the rock and the hill surface is 0.24. If the gravitational potential energy U of the rock-Earth system is set to zero at the bottom of the hill, what is the value of U just before the slide?1.15×106 J How much mechanical energy is dissipated by frictional forces during the slide? What is its speed then? What is the kinetic energy of the rock as it reaches the bottom of the hill?
A 3.0 kg block is thrown downward from a point 37 m above the Earth's surface. At what height above Earth's surface will the gravitational potential energy of the Earth-block system have decreased by 320 J? O 11m O 37 m O 7.0 m O 26 m O 48 m Save for Later Submit Answer
A center throws a basketball m = 1 kg straight up with an initial speed of vo = 9.5 m's. He releases the ball at shoulder | height ho = 1.9 m. Let gravitational potential energy be zero at ground level. Give the total mechanical energy of the ball E in terms of maximum height h it reaches, the mass m, and the gravitational acceleration g. E= What is the height, hm in meters? 9 HOME
"20 kg bear slides, from rest, 8 m down a Lodgepole Pine tree, moving with a speed of 5.6 m/s just before hitting the ground. What change occurs in the gravitational potential energy of the bear Earth system during the slide?"
A 700 kg dragster accelerates from rest to a final speed of 120 m/s in 400 m (about a quarter of a mile) and encounters an average frictional force of 1200 N. What is its average power output in watts and horsepower of the car engine?a) watts= b) horsepower=
A woman runs up a flight of stairs. The gain in her gravitational potential energy is 1000 J. If she runs up the same stairs at half the speed, her gain in gravitational potential energy will be . . . Group of answer choices 500 J 2000 J 100 J 1000 J
A roller coaster car has a mass of 2,895 kg when loaded with people. The car is rolling down a steep hill. When the car is 12.5 m above the ground its velocity is 3.11 m/s. Assuming we can ignore friction, use energy principles to determine the initial gravitational potential energy (EGi).