Questions
Which of the following is correct, when a person walks on a rough surface
a
The frictional force exerted by the surface keeps him moving
b
The force which the man exerts on the floor keeps him moving
c
The reaction of the force which the man exerts on floor keeps him moving
d
None of the above
detailed solution
Correct option is C
The reaction of the force which the man exerts on floor keeps him movingTalk to our academic expert!
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A machine gun fires a bullet of mass 40 g with a velocity 1200 .The man holding it can exert a maximum force of 144 N on the gun. How many bullets can be fired per second at the most?
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