A bird of mass 400 gm is flying horizontally at a certain height with

1.	A bird of mass 400 gm is flying horizontally at a certain height with constant accelerat ion of 5 m/s² The force exerted by surrounding air on the bird has magnitude ( g = 10m/s² )
Answer» ong> 0.12s 0.08s 0.04s 12s ANSWER : A SOLUTION : Velocity by which the BALL hits the bat v1=2gh1−−−−√=2×10×5−−−−−−−−−√ or v→1=+10m/s=10m/s . Velocity of rebound v2=2gh1−−−−√=2×10×20−−−−−−−−−√=20m/s or v→2=−20m/s . F=mdvdt=m(v→2−v→1)dt=0.4(−20−10)dt=100N. by solveing, dt=0.012 sec.

A bird of mass 400 gm is flying horizontally at a certain height with constant accelerat ion of 5 m/s² The force exerted by surrounding air on the bird has magnitude ( g = 10m/s² )

Answer»

ong>

0.12s

0.08s

0.04s

12s

ANSWER :

SOLUTION :

Velocity by which the BALL hits the bat

v1=2gh1−−−−√=2×10×5−−−−−−−−−√ or v→1=+10m/s=10m/s .

Velocity of rebound

v2=2gh1−−−−√=2×10×20−−−−−−−−−√=20m/s or v→2=−20m/s .

F=mdvdt=m(v→2−v→1)dt=0.4(−20−10)dt=100N.

by solveing, dt=0.012 sec.

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A bird of mass 400 gm is flying horizontally at a certain height with constant accelerat ion of 5 m/s² The force exerted by surrounding air on the bird has magnitude ( g = 10m/s² )​

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A bird of mass 400 gm is flying horizontally at a certain height with constant accelerat ion of 5 m/s² The force exerted by surrounding air on the bird has magnitude ( g = 10m/s² )