Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Physics Laws of Motion Newton's Laws of Motion
The initial mass of a rocket is 1000 kg. Calculate at what rate the fuel should be burnt so that the rocket is given an acceleration of 20 ms-2. The gases come out at a relative speed of 500 ms-1 with respect to the rocket:
[Use g = 10 m/s2]
1
60 kg s-1
2
6.0 × 102 kg s-1
3
500 kg s-1
4
10 kg s-1