Question

The frictional force of the air on a body of mass 0.5kg ,falling with an acceleration of 9.0m/s²,will be ???

Correct Solutions only

Wrongs answer will be reported​

Answer 1

Answer:-

The frictional force of the air on the given body is 0.5N.

Solution:-

Given:-

• (i) Mass of body (m) = 0.5 kg

• (ii) Acceleration = 9 m/s²

• (iii) Acceleration due to gravity (g) = 10m/s²

Let:-

The frictional force be f.

Then:-

=> f = mg - ma

=> f = m (g - a)

=> f = 0.5 (10 - 9)

=> f = 0.5 x 1

=> f = 0.5 N.

Therefore:-

The frictional force of the air on the given body is 0.5N.