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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

Respuesta :

Answer:

250 N

Explanation:

[tex]a = \frac{vf - vi}{t} [/tex]

Vf=final velocity

Vi =initial velocity

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

F=ma

=10kg * 25m/s^2

=250N

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