A 98 kg bicyclist traveling 15 m/s coasts up a 5 m high incline. After reaching the top of the incline, their speed has been reduced to 2 m/s. How much thermal energy from friction was lost between the two points given? v = 2 m/s v = 15 m/s 5 m

Ugonna stands at the top of an incline and pushes a 103-kg crate to get it started sliding down the incline. The crate slows to a halt after traveling 1.28 m along the incline. If the initial speed of the crate was 2.00 m/s and the angle of inclination is 30.0°, how much energy was dissipated by friction?

a 16 kg girl slides down a playground slide that is 4.8 m high. when she reaches the bottom of the slide, her speed is 1.9 m/s. the acceleration of gravity is 9.81 m/s^2. how much energy was dissipated by friction? answer in units of J. If the slide is inclined at 40 degrees what is the coefficient of friction between the girl and the slide?

600 400 BXxx 2 3 200 0 Potential energy Kinetic energy Mechanical energy 4 5 6 Time (s) 7 Which of the following best explains the decrease in Mechanical energy between 0 and 8 seconds? O Mechanical Energy cannot be measured O Mechanical Energy will increase again after 8 seconds. O Mechanical Energy is lost to friction. O Mechanical Energy is conserved

14. A 73 kg skier starts at rest at the top of a 100 m high hill. He skies down this hill and back up a 60 m high hill. If the speed of the skier at the top of the second hill is 11 m/s, how much energy was generated due to friction?

A 55-kg girl is riding a 5 kg bike with 5 m/s on a ramp with 4 meters height and 8 meters length. The ramp makes 30 degrees angle with the ground. What is her speed at the bottom of the ramp if there is no sliding friction What is her speed at the bottom of the ramp if there is the coefficient of friction is mu=0.1

A 563 kg rollercoaster car starts at rest atop a 38-meter hill. Find the gravitational potential energy, when it goes over the second hill which is 14 meters high. You may assume the track is frictionless and that air resistance is negligible. 38 m 14 m

A 3.0 kg package is released and slides down a ramp, which is 10 m in length and is inclined at an angle of 30 degrees.  It experiences a frictional force of 5.0 N during the slide.  What is its final speed at the bottom of the ramp?  USE ENERGY METHODS.

How much work must be done by frictional forces in slowing a 1000.0 kg car from 19.8 m/s to rest? O 6.22 x 105 J 1.96 x 105 J 5.33 x 105 J 4.44 x 105 J 3.55 x 105 J

A 1000kg car moving at 22.8 m/s on a flat road slams on the brakes and skids to a stop. The coefficient of kinetic friction between the road and car tires is 0.587. How many meters does the car go before it comes to a complete stop? (hint: think of Work-Energy theorem, and friction equation)