Atoy car of mass 0.15kg accelerates from a speed of 10 cm/s to a speed of 15 cm/s. what is the impulse acting on the car? a. 7.5 mn sb. 37.5 mn sc. 0.75 n s d. 3.75 n sif you could explain how you got it i would appreciate that

Answer : The correct option is, (A) 7.5 mN.s

Explanation :

Impulse : It is defined as the force applied to an object for a certain amount of time.

Formula used :

As we know that:

Thus, formula of impulse will be:

where,

I = impulse  = ?

m = mass = 0.15 kg

= change in speed of velocity =     (1 m = 100 cm)

Now put all the given values in the above formula, we get:

     (1 N.s = 1000 mN.s)

Therefore, the impulse acting on the car is, 7.5 mN.s

the answer to this question is 60 n

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6