Question

An experimental device imparts a force of magnitude:

a) 10 N
b) 5 N
c) 20 N
d) 15 N

Answer 1

The force needed to cause the object to accelerate at 20 m/s2 is 100 N.

Step-by-step explanation:

Force is a fundamental concept in physics that describes the interaction between objects, resulting in a change in their motion. In simple terms, force is a push or pull that can cause an object to accelerate, decelerate, or change its shape.

The force needed to cause a 5-kg object to accelerate at 20 m/s2 can be calculated using Newton's Second Law of Motion, which states that force is equal to mass multiplied by acceleration. Therefore, the force needed is equal to:

Force = Mass × Acceleration

Force = 5 kg × 20 m/s2

Force = 100 N

So the correct answer is a) 100 N.