Question

Which object will have greater acceleration? Why?​

Answer 1

Answer:

Object D

Explanation:

Use Newton's Second Law to determine the acceleration that each object has.

• F = ma

The force applied in both cases is 50 N, but the mass for object C and object D is different.

Let's start with object C first:

• F = ma
• 50 N = 10 kg · a
• 50 = 10a
• 5 = a

The acceleration object C undergoes is 5 m/s².  

Now let's calculate object D next:

• F = ma
• 50 N = 2 kg * a
• 50 = 2a
• 25 = a

The acceleration object D undergoes is 25 m/s².

Object D has greater acceleration because it has a smaller mass. The object with a smaller mass will accelerate more in order to satisfy Newton's 2nd Law.