Which of the following explains why a bicycle increases its speed down a hill even without peddling from the cyclist? A. Kinetic energy is at its maximum value and the potential energy is at its minimum value causing the bicycle to speed up. B. The potential energy is transformed to kinetic energy thereby causing the bicycle to speed up. C. Both potential and kinetic energies are of equal magnitude causing the bicycle to speed up. D. Both potential and kinetic energies are zero causing the bicycle to speed up.

Q: 6. You notice that an object is moving from point A to point B. The object measures a kinetic energy…

A: Given data: The kinetic energy at A is KE=6.75 J. The speed at A is vA=4.25 m/s. The speed at B is…

Q: An object I with a mass of 4 kg is lifted vertically 3 m from the ground level; another object II…

A: Object 1 has mass 4kg and taken to 3m and object 2 has mass 2kg and taken to 6m.

Q: A crate of mass 10.0 kg is pulled up a rough surface inclined at an angle of 20° with the…

A:

Q: You are using a rope to lift a 14.5 kgkg crate of fruit. Initially you are lifting the crate at…

A: given:-      mass of crate of fruit = 14.5 kg    Initial velocity of crate (u) = 0.500 m/s  Tension…

Q: What happens when an object is moved against gravity, such as rolling a toy car up a ramp? a.…

A: Option C is correct

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A: Given : m = 5 kg v = 1 m/s

Q: mechanical energy is 7J:

A: According to our policy, I am doing first three subparts and rest you can upload separately.

Q: There are 2 cars. Assuming the first car has a mass of 1000 Kg, which has greater kinetic energy? a.…

A: given: mass of first car =1000 kg

Q: 3) Is it possible for a system to have negative potential energy? A. Yes, as long as the kinetic…

A:

Q: 1. a brick with mass 30 kg rests a top a 12 m tall wall. What is the brick's gravitational potential…

A: Given: mass of brick, m = 30 kg height of tall wall, h = 12 m