Question

The acceleration produced by a force 5 N acting on a mass of 20 kg in m/s2 is:
a) 4 b) 100 c) 0.25 d) 2.5
A fielder pulls his hand backwards after catching the cricket ball. This enables the fielder to:
a) exert large force on the ball b) reduce the force exerted by the ball c) increase the rate of change of momentum s) keeps the ball in hands firmly.

Answer 1

For first question the answer will be 0.25m/s2
Force=m*a=5=20*a
a=0.25
FOR SECOND QUESTION OPTION (b is correct.

Answer 2

ANSWER
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(i) Force = Mass × Acceleration

5 = 20 × Acceleration

Acceleration = 5/20

Acceleration = 1/4

= 0.25 m/sec^2

HENCE,
ANSWER IS (c)
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(ii) The cricketer does so to decrease the force exerted by ball.

Hence,
ANSWER IS (b)

He does so so that he can increase the amount of time of contact.
We know Force equals change in momentum ÷ time. By this we get that time and force are inversely proportional.
If we increase the time, the force exerted on his hands will decrease and will reduce chances of injury.
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HOPE IT HELPS :):):););)