Question

A car is rolling toward a cliff with an initial speed of 15 m/s. The maximum negative
acceleration that can be provided by the brakes is -0.3 m/s². If the cliff is 350 m from the
initial position of the car, will the car go over the cliff?​

Answer 1

Answer:

yes

Explanation:

we'll use one of the equations of motion here to determine the distance travelled by the car given the initial velocity and acceleration provided

equation:

2as=v²- u²

a= (-0.3m/s²)

u (initial velocity)= 15 m/a

v (final velocity)= 0 (bc the car is stopping when brakes are put)

s= displacement/ distance covered

2as=v²- u²

2(-0.3)×s= 0²- 15²

(-0.6)×s= (-225)

s= (-225)/(-0.6)

s= 375m

The car travels 375m before stopping. Clff is 350m away so the car goes over the cliff