Question

Answer it.............​

Answer 1

SOLUTION:-

_______________

GIVEN THAT:

Velocity of the rocket = 300 m/s

force = 210 N

Here we have to find out the value of "m/t"

From Newton's 2nd law,

f = m.a

( we know that a = v/t)

Now putting the value of f and a, we get;

210 = m.v/t

=> 210 = m.300/t

=> m/t = 210/300

=> m/t = 0.75 kg/s

Hence the option (a) is right answer

Hope it will help you ✌️