First slide

Second law

Question

A rocket having initial mass of 1000 kg burns fuel at the rate of 4 kg/s. If the speed of exhaust gases relative to the rocket is 3000 m/s, the initial thrust on the rocket is:

Easy

A

1.2 N
B

3 x 10³N
C

4 x 10³N
D

1.2 x 10⁴N

Solution

Thrust on rocket $= \frac{vdm}{dt} = 4 \times 3000 = 12000 N = 1 .2 \times 10^{4} N$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App