A motorcycle moving at 40 m/s accelerates at -6.0 m/s2 for 4.0 seconds. What is the motorcycle's velocity at the end of this 4.0 second interval?

16 m/s

Explanation:

Given:

v₀ = 40 m/s

a = -6.0 m/s²

t = 4.0 s

Find: v

v = at + v₀

v = (-6.0 m/s²) (4.0 s) + 40 m/s

v = 16 m/s

c, 1a hope this

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )