Question

Rocket-powered sleds are used to test the human response to acceleration. If a rocket- powered sled is accelerated to a speed of 444 m/s in 1.8 seconds, then what is the acceleration and what is the distance that the sled travels?

Answer 1

Answer:

Given, initial velocity u=0m/s, final velocity v=444m/s and time t=1.83s

If a be the acceleration.

Using v=u+at,

we get 444=0+a(1.83)

⟹ a=444/1.83=242.62∼243m/s

2

If d be the traveled distance by sled.

Using formula v

2

−u

2

=2aS

444

2

−0

2

=2(243)d

⟹ d=405.63∼406m