A car with a gun mounted on it is kept on horizontal friction less surface. Total mass of car, gun and shell is 50 kg. Mass of each shell is 1 kg. If shell is fired horizontally with relative velocity 100 m/sec with respect to gun. what is the recoil speed of car after second shot in nearest integer ?
Text Solution
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CHECK THE SOLUTION.
(4)
(i) → 100 – V 1 m/s
(ii) → 100 – V 2 m/s
(100 – V 1 ) × 1 = 49 V 1
(100 – V 2 ) = 48 V 2
V 1 = 
V 2 = 
V net = V 1 +V 2
= 
+ 
V net = 100 
m/s
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