Assertion : A ball of mass `100g` hits a bat with a speed of `72km//hr` and bounces back with the same speed in one second The force exerted by the bat on the ball is `4N`
Reason : It follows from `F =ma` .

Options

A. If both, Assertion and Reason are true and the Reason is the correct explanation of the Assertion
B. If both, Assertion and Reason are true but Reason is not a correct explanation of the Assertion
C. If Assertion is ture but the Reason is false
D. If both, Assertion and Reason are false

Answer

b

Explanation

Here, `m = 100 g = 10^(-1) kg, u = 72km//hr =20m//s`
`= (10^(-1) (20 + 20))/(1) = 4N`
The statement -1 is true Statement-2 is also true but it does not explaine the assertion properly .