Question

Question 7. In the following example, try to identify the number of times the
velocity of ball changes:
"A football player kicks a football to another player of his team who kicks the
football towards the goal. The goalkeeper of the opposite team colle
football and kicks it towards a player of his own team."
(a) Three times
(b) Four times
(c) Five times
(d) Six times
Question 8. A bullet of mass 40gm is fired from a gun of mass 8kg with a velocity
of 800 m/s, calculate the recoil velocity of gun
(a) 1m/s
(b) - 1m/s
(c) 2m/s
(d) -4m/s
Question 9. A passenger in a moving train tosses a coin. The coin will fall back
(a) Behind him
(b) In front of him
(c) On his hands
(d) On the side of the train
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Answer 1

Answer:

Q7 answer b four times

Q8 answer d -4m/s

Q9 answer c on his hand

Explanation:

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