Question

solve numerical problems question no 1,2,3.
.

Answer 1

Hii..
Here is your answer..

1)Solution:-
Mass of car =1000kg
Velocity =54km/h
$= > 54 \times \frac{5}{18} \\ = > 15$
=>15m/s

Now,
$a = \frac{v}{t} \\ = > \frac{15}{5}$
=>3m/s^2
Now,
Force =Mass × Acceleration
$= > 1000 \times 3$
=>1000N

Hence ,Force applied is 1000N.

2) Solution:-
Mass of gun =50g
$= > \frac{50}{1000}kg \\ = > 0.05kg$
Velocity=200m/s

Mass of pistol=5kg
Velocity=?
Let it be x.

So,
According to conservation of law of momentum:-
M1 ×V1=M2 × V2
$= > 0.05 \times 200 = 5 \times x \\ = > 10 = 5x \\ = > x = 2$
Hence,
Velocity of pistol=2m/s

Hope it helps uh...✌️✌️✌️