Chapter 5 – Newton’s Laws of Motion (Without Friction)
Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 5 - Newton's Laws of Motion (Without Friction)
In the the given figure, a person wants to raise a block lying on the ground to a height h. In both the cases, if time required is same, then in which case he has to exert more force? (Assume pulleys and strings light)
19
Oct
In the the given figure, a person wants to raise a block lying on the ground to a height h. In both the cases, if time required is same, then in which case he has to exert more force? (Assume pulleys and strings light) a person wants to raise a block lying on the ground [...]
A block of metal weighing 2kg is resting on a frictionless plane. It is struck by a jet releasing water at a rate of 1kgs^−1 and at a speed of 5ms^_1. The initial acceleration of the block is
19
Oct
A block of metal weighing 2kg is resting on a frictionless plane. It is struck by a jet releasing water at a rate of 1kgs^−1 and at a speed of 5ms^_1. The initial acceleration of the block is A block of metal weighing 2kg is resting on a frictionless plane. It is struck by a [...]
Two particles A and B, each of mass m are kept stationary by applying a horizontal force F=mg on particle B as shown in figure. Then:
19
Oct
Two particles A and B, each of mass m are kept stationary by applying a horizontal force F=mg on particle B as shown in figure. Then: each of mass m are kept stationary by applying a horizontal force F=mg on particle B as shown in figure. Then: Two particles A and B October 19, 2020 [...]
Figure, represents a light inextensible string ABCDE in which AB=BC=CD=DE and to which are attached masses M, m, and M at the point B,C and D, respectively. The system hangs freely in equilibrium with ends A and E of the string fixed in the same horizontal line. it is given that tanα=3/4 and tanβ=12/5. Then the tension in the string BC is
19
Oct
Figure, represents a light inextensible string ABCDE in which AB=BC=CD=DE and to which are attached masses M, m, and M at the point B,C and D, respectively. The system hangs freely in equilibrium with ends A and E of the string fixed in the same horizontal line. it is given that tanα=3/4 and tanβ=12/5. Then [...]
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Chapter 5 - Newton's Laws of Motion (Without Friction)
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and M at the point B ,
C and D ,
Figure ,
m ,
represents a light inextensible string ABCDE in which AB=BC=CD=DE and to which are attached masses M ,
respectively. The system hangs freely in equilibrium with ends A and E of the string fixed in the same horizontal line. it is given that tanα=3/4 and tanβ=12/5. Then the tension in the string BC is ,
A 60kg man stands on a spring scales in a lift. At some instant. He finds that the scale reading has changed from 60kg to 50 kg for a while and then comes back to original mark. What should be concluded?
19
Oct
A 60kg man stands on a spring scales in a lift. At some instant. He finds that the scale reading has changed from 60kg to 50 kg for a while and then comes back to original mark. What should be concluded? A block A has a velocity of 0.6ms^−1 the right. Determine the velocity of [...]
A painter of mass M stands on a platform of mass m and pulls himself up by two ropes which hang over pulley as shown in fig. He pulls each rope with force F and moves upward with a uniform acceleration a. find a, neglecting the fact that no one could do this for long time.
19
Oct
A painter of mass M stands on a platform of mass m and pulls himself up by two ropes which hang over pulley as shown in fig. He pulls each rope with force F and moves upward with a uniform acceleration a. find a, neglecting the fact that no one could do this for long [...]
A man pulls himself up the 30^∘ incline by the method shown in fig. if the combined mass of the man and cart is 100 kg, determine the acceleration of the cart if the man exerts a pull of 250 N on the rope. Neglect all friction and the mass of rope , pulleys and wheels.
19
Oct
A man pulls himself up the 30^∘ incline by the method shown in fig. if the combined mass of the man and cart is 100 kg, determine the acceleration of the cart if the man exerts a pull of 250 N on the rope. Neglect all friction and the mass of rope , pulleys and [...]
A block A has a velocity of 0.6ms^−1 the right. Determine the velocity of cylinder B.
19
Oct
A block A has a velocity of 0.6ms^−1 the right. Determine the velocity of cylinder B. A block A has a velocity of 0.6ms^−1 the right. Determine the velocity of cylinder B. October 19, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 5 - Newton's Laws of Motion (Without Friction) ,
An object is suspended from a spring balance in a lift. The reading is 240 N when the lift is at rest. If the spring balance reading now change to 220N, then the lift is moving
19
Oct
An object is suspended from a spring balance in a lift. The reading is 240 N when the lift is at rest. If the spring balance reading now change to 220N, then the lift is moving An object is suspended from a spring balance in a lift. The reading is 240 N when the lift [...]
A particle of small mass m is joined to a very heavy body by a light string passing over a light pulley. Both bodies are free to move. The total downward force on the pulley is
19
Oct
A particle of small mass m is joined to a very heavy body by a light string passing over a light pulley. Both bodies are free to move. The total downward force on the pulley is A particle of small mass m is joined to a very heavy body by a light string passing over [...]