RBTS PAPER 3(PHYSICS)
3 RBTS PAPER

162605 A stone tide with a string is moving in a vertical circle of radius ' r '. Its minimum velocity at the highest point of the circle will be

1 3gr
2 2gr
3 gr
4 gr2
3 RBTS PAPER

162591 An elevator can carry a maximum load of 1800 kg (elevator + passengers) is moving up with a constant speed of 2 ms1. The frictional force opposing the motion is 4000 N. Determine the minimum power delivered by the motor to the elevator in watts.

1 44000 W
2 50000 W
3 22000 W
4 11000 W
3 RBTS PAPER

162565 A force acts on a 2 kg object so that its position is given as a function of time as x=3t2+5. What is the work done by this force in first 5 seconds :

1 850J
2 900 J
3 950 J
4 875 J.
3 RBTS PAPER

162566 A block of mass m is kept on a platform which starts from rest with a constant acceleration g/2 upwards, as shown in the figure. Work done by normal reaction on block In time t is :

1 zero
2 3mg2t28
3 mg2t28
4 mg2t28
3 RBTS PAPER

162605 A stone tide with a string is moving in a vertical circle of radius ' r '. Its minimum velocity at the highest point of the circle will be

1 3gr
2 2gr
3 gr
4 gr2
3 RBTS PAPER

162590 A body covers a distance of 2m under the action of force F=(154x)N where x is the distance in metres from starting point. The work done by the force is :

1 11 J
2 22 J
3 7 J
4 14 J
3 RBTS PAPER

162591 An elevator can carry a maximum load of 1800 kg (elevator + passengers) is moving up with a constant speed of 2 ms1. The frictional force opposing the motion is 4000 N. Determine the minimum power delivered by the motor to the elevator in watts.

1 44000 W
2 50000 W
3 22000 W
4 11000 W
3 RBTS PAPER

162565 A force acts on a 2 kg object so that its position is given as a function of time as x=3t2+5. What is the work done by this force in first 5 seconds :

1 850J
2 900 J
3 950 J
4 875 J.
3 RBTS PAPER

162566 A block of mass m is kept on a platform which starts from rest with a constant acceleration g/2 upwards, as shown in the figure. Work done by normal reaction on block In time t is :

1 zero
2 3mg2t28
3 mg2t28
4 mg2t28
3 RBTS PAPER

162605 A stone tide with a string is moving in a vertical circle of radius ' r '. Its minimum velocity at the highest point of the circle will be

1 3gr
2 2gr
3 gr
4 gr2
3 RBTS PAPER

162590 A body covers a distance of 2m under the action of force F=(154x)N where x is the distance in metres from starting point. The work done by the force is :

1 11 J
2 22 J
3 7 J
4 14 J
3 RBTS PAPER

162591 An elevator can carry a maximum load of 1800 kg (elevator + passengers) is moving up with a constant speed of 2 ms1. The frictional force opposing the motion is 4000 N. Determine the minimum power delivered by the motor to the elevator in watts.

1 44000 W
2 50000 W
3 22000 W
4 11000 W
3 RBTS PAPER

162565 A force acts on a 2 kg object so that its position is given as a function of time as x=3t2+5. What is the work done by this force in first 5 seconds :

1 850J
2 900 J
3 950 J
4 875 J.
3 RBTS PAPER

162566 A block of mass m is kept on a platform which starts from rest with a constant acceleration g/2 upwards, as shown in the figure. Work done by normal reaction on block In time t is :

1 zero
2 3mg2t28
3 mg2t28
4 mg2t28
3 RBTS PAPER

162605 A stone tide with a string is moving in a vertical circle of radius ' r '. Its minimum velocity at the highest point of the circle will be

1 3gr
2 2gr
3 gr
4 gr2
3 RBTS PAPER

162590 A body covers a distance of 2m under the action of force F=(154x)N where x is the distance in metres from starting point. The work done by the force is :

1 11 J
2 22 J
3 7 J
4 14 J
3 RBTS PAPER

162591 An elevator can carry a maximum load of 1800 kg (elevator + passengers) is moving up with a constant speed of 2 ms1. The frictional force opposing the motion is 4000 N. Determine the minimum power delivered by the motor to the elevator in watts.

1 44000 W
2 50000 W
3 22000 W
4 11000 W
3 RBTS PAPER

162565 A force acts on a 2 kg object so that its position is given as a function of time as x=3t2+5. What is the work done by this force in first 5 seconds :

1 850J
2 900 J
3 950 J
4 875 J.
3 RBTS PAPER

162566 A block of mass m is kept on a platform which starts from rest with a constant acceleration g/2 upwards, as shown in the figure. Work done by normal reaction on block In time t is :

1 zero
2 3mg2t28
3 mg2t28
4 mg2t28
3 RBTS PAPER

162605 A stone tide with a string is moving in a vertical circle of radius ' r '. Its minimum velocity at the highest point of the circle will be

1 3gr
2 2gr
3 gr
4 gr2
3 RBTS PAPER

162590 A body covers a distance of 2m under the action of force F=(154x)N where x is the distance in metres from starting point. The work done by the force is :

1 11 J
2 22 J
3 7 J
4 14 J
3 RBTS PAPER

162591 An elevator can carry a maximum load of 1800 kg (elevator + passengers) is moving up with a constant speed of 2 ms1. The frictional force opposing the motion is 4000 N. Determine the minimum power delivered by the motor to the elevator in watts.

1 44000 W
2 50000 W
3 22000 W
4 11000 W
3 RBTS PAPER

162565 A force acts on a 2 kg object so that its position is given as a function of time as x=3t2+5. What is the work done by this force in first 5 seconds :

1 850J
2 900 J
3 950 J
4 875 J.
3 RBTS PAPER

162566 A block of mass m is kept on a platform which starts from rest with a constant acceleration g/2 upwards, as shown in the figure. Work done by normal reaction on block In time t is :

1 zero
2 3mg2t28
3 mg2t28
4 mg2t28