Question

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

Answer 1

$\bf\huge{Question:-}$

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

$\bf\huge{answer:-}$

your answer is 7m/s

Answer 2

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.