A ball has a mass of 140 g. What is the force needed to accelerate the ball at 25 m/s2? (Formula: F=ma)
3.5 N
115 N
165 N
4.5 N
3.5 N
To find the force needed to accelerate the ball, you can use the formula F = ma where F is the force, m is the mass, and a is the acceleration.
Given:
m = 140 g = 0.14 kg (since 1 kg = 1000 g)
a = 25 m/s^2
F = (0.14 kg)(25 m/s^2)
F = 3.5 N
Therefore, the force needed to accelerate the ball at 25 m/s^2 is 3.5 N.