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प्रश्न
In vacuum, all freely falling objects have the same force. Is it true?
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उत्तर
Yes, in absence of gravity all freely falling body have same force acting on them.
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संबंधित प्रश्न
State whether the following statement is true or false :
A falling stone also attracts the earth.
What is the force of gravity on a body of mass 150 kg lying on the surface of the earth? (Mass of earth = 6 x 1024 kg; Radius of earth = 6.4 x 106 m; G = 6.7 x 10-11 Nm2/kg2)
What do you understand by the term 'acceleration due to gravity of earth' ?
Why does a sharp knife cut objects more effectively than a blunt knife ?
A metal ball of mass 5 kg falls from a height of 490 m. How much time it will take to reach the ground? (g = 9.8 m/s2)
A force causes an acceleration of 10 m s-2 in a body of mass 500 g. What acceleration will be caused by the same force in a body of mass 5 kg?
A car is moving with a uniform velocity 30 ms-1. It is stopped in 2 s by applying a force of 1500 N through its brakes. Calculate the following values : The retardation produced in car.
Define the term acceleration due to gravity? Write its S.I. unit.
Explain why:
Objects fall to the earth.
Write a short note.
Escape Velocity
