Question

Question 1 (1 point)

What force is needed to accelerate a 10 kg ball from 20 m/s to 70 m/s in 2 seconds?
a
25 Newtons
b
50 Newtons
102 Newtons
u
O O O O
d
250 Newtons
е
1000 Newtons

Answer 1

250 N

Step-by-step explanation:

`a = (vf - vi)/(t)`

Vf=final velocity

Vi =initial velocity

=70-20/2=25m/s^2

F=ma

=10kg * 25m/s^2

=250N