Showing posts with the label velocityShow All
3 ) The fog droplet falls vertically through air with acceleration equal to . . . . . . . . . . . : - A ) finite , B ) infinite , C ) zero ,

3 ) The fog droplet falls vertically through air with acceleration equal to . . . . . . . . . . . : - A ) finite , B ) infinite , C ) zero ,

Physics - November 24, 2021
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A mass of 2.9 kg is suspended from a string of length 50 cm and it is at rest . Another body of mass 0.1 kg moving horizontally with velocity 150 m / s , strikes and sticks to it . What is tension in the string , when it makes angle 60 degree with vertical ?

A mass of 2.9 kg is suspended from a string of length 50 cm and it is at rest . Another body of mass 0.1 kg moving horizontally with velocity 150 m / s , strikes and sticks to it . What is tension in the string , when it makes angle 60 degree with vertical ?

velocity - September 11, 2021
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1 ) For a given angle of projection , if the time of flight of projection is doubled , then horizontal range will increase to ?

1 ) For a given angle of projection , if the time of flight of projection is doubled , then horizontal range will increase to ?

velocity - September 11, 2021
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1) A boat which has speed of 5 km / h in still water across a river of width of 1km along the shortest path in 15 minutes . The velocity of river in km / s is : -

1) A boat which has speed of 5 km / h in still water across a river of width of 1km along the shortest path in 15 minutes . The velocity of river in km / s is : -

velocity - August 31, 2021
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At the height of 80 m , an aeroplane is moving with 150 m / s . A bomb is dropped from it so as to hit a target . At what distance from the target should the bomb be dropped ? ( g = 10 m / s ) .

At the height of 80 m , an aeroplane is moving with 150 m / s . A bomb is dropped from it so as to hit a target . At what distance from the target should the bomb be dropped ? ( g = 10 m / s ) .

Physics - August 29, 2021
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A ball at rest is dropped from a height of 12 m . It loses 25 % of its kinetic energy in striking the ground . Find the height to which it bounces . How do you account for the loss in kinetic energy ?

A ball at rest is dropped from a height of 12 m . It loses 25 % of its kinetic energy in striking the ground . Find the height to which it bounces . How do you account for the loss in kinetic energy ?

Forces - August 12, 2021
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Two bodies of mass 4 kg and 5 kg are moving along east and north direction with velocities 5 m / s and 3 m / s respectively . Magnitude of velocity of centre of mass of system is . . . . . . . . . : -

Two bodies of mass 4 kg and 5 kg are moving along east and north direction with velocities 5 m / s and 3 m / s respectively . Magnitude of velocity of centre of mass of system is . . . . . . . . . : -

velocity - August 10, 2021
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A body of mass 1 kg moving with velocity 4 m / s collides elastically with another body of mass 2 kg moving with velocity 1 m / s in opposite direction . What are the velocities of two bodies after collision ?

A body of mass 1 kg moving with velocity 4 m / s collides elastically with another body of mass 2 kg moving with velocity 1 m / s in opposite direction . What are the velocities of two bodies after collision ?

velocity - August 10, 2021
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1 ) According to the spherical relative theory , as the speed of object increases , so mass will . . . . . . . . . . . . . : - A ) increase , B ) decrease , C ) remain same , D ) None of these ,

1 ) According to the spherical relative theory , as the speed of object increases , so mass will . . . . . . . . . . . . . : - A ) increase , B ) decrease , C ) remain same , D ) None of these ,

Physics - August 04, 2021
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