Question

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

Answer 1

3.5

Step-by-step explanation:

EDGE 2020

Answer 2

The force needed to accelerate the ball at 25 meters per square second is 3.5 newtons.

Step-by-step explanation:

From 2nd Newton's Law, the net force experimented by the ball (
`F`), measured in newtons, is defined by:

`F = m\cdot a` (1)

Where:

`m` - Mass, measured in kilograms.

`a` - Acceleration, measured in meters per square second.

If we know that
`m = 0.140\,kg` and
`a = 25\,(m)/(s^(2))`, then the net force needed to accelerated the ball is:

`F = (0.140\,kg)\cdot \left(25\,(m)/(s^(2)) \right)`

`F = 3.5\,N`

The force needed to accelerate the ball at 25 meters per square second is 3.5 newtons.