Question

A truck 10,000 kg going 40 m/s loses its brakes. If the runoff ramp is at an angle of 30°, how long will it take to stop?

Answer 1

`2.04"s"`

Explanation:

I'm assuming that the engine is cut off at the point it hits the ramp.

Considering the vertical component of the truck's velocity:

`v=u+at`

`:.0=40sin30-9.8t`

`t=20/9.8=2.04"s"`

The mass is irrelevant.