Question
Diwali rocket is ejecting 50 g of gases/s at a velocity of 400 m/s. The accelerating force on the rocket will be
22 dyne
20 N
20 dyne
100 N
Solution
B.
20 N
The accelerating force on the rocket
= upward thrust =
Given:-
,
ν = 400 m/s
Accelerating force = 50 × 10 × 400
= 20 N
