Question

Estimate the net force needed to accelerate a 1000 kg car at 5 m/s2. If same force is
applied to a 200 g apple, what will be its acceleration ?

Answer 1

Answer:

2.5 * 10^4 m/s2

Explanation:

Given, mass of car, m = 1000 kg

acceleration of car, a = 5 m/s2

force needed, F = ?

Force, F = ma = 1000 * 5 = 5000 N

Now, same force is applied to a 200 g apple i.e., F = 5000 N

mass of apple, m' = 200 g = 200/1000 = 0.2 kg

Thus, acceleration of apple, a' = F/m' =5000 /0.2

2.5*10^4 m/s^2