Question

How much force is needed accelerate a 35 kg sled from 30 m/s to 65 m/s in 0.4 seconds?

Answer 1

F = 3062.5 N

Step-by-step explanation:

Given that,

The mass of a sled, m = 35 kg

The speed increase from 30 m/s to 65 m/s in 0.4 seconds.

We need to find the force needed to accelerate the car.

Net force is given by :

F = ma

where

a is acceleration of the car.

`F=(m(v-u))/(t)\\\\F=(35* (65-30))/(0.4)\\\\F=3062.5\ N`

So, the net force is 3062.5 N.