Question

Pls answer fast... ​

Answer 1

Answer:

A

Explanation:

here is your answer

please mark me

look force is directly proportional to time

Answer 2

Option A is ur required answer

Explanation:

It is given that f is acting on a body is inversely proportional to it's velocity . It can be written as....

f proportional to 1/v

or , f = k/ v

here k = constant

we know the Newton second law of motion i;e f = ma

a= dv/ dt

ma= k/v

=> dv/dt= k/v

Integrating on both side.... ,we get

v^2/t= kt/m

kt= 1/2 mv^2

we know that K.E = 1/2 mv^2

hence... kt= KE

so that KE proportional to t( k= constant)

kinetic energy is directly proportional to t....

Hope it will help you ✌️