A lift of mass 1000 kg

A body starts rolling down on an inclined plane, the top half of which is perfectly smooth and lower half is rough. A particle is projected upwards from the surface of the earth of radius R with a KE equal to half the minimum value needed for it to escape. To what height h does it rise above the surface of the earth.

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A lift of mass 1000 kg

Are you sure you want to logout? Yes No. Have a query? Ask a Tutor!! Access to best educators and exclusive paper discussions. Please update the Email address in the profile section, to refer a friend. Update Later. Ask a doubt. The correct answer is: 10, A Person standing on the floor of a lift drops a coin. The coin reaches the floor of the lift in time to if the lift is stationary and the time t 2 if il is acceleratcd in upward direction. Than physics General. If the coefficient of friction is 0.

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A coin is released inside a lift at a height of 2m from the floor of the lift. The height of the lift is 10 m. A mass of 10 kg is hung to a spring balance in lift. Then the tension in the cable of the lift is :. Then the tension in the cable of the lift is-.

This is an application of Newton's second law to the forces felt in an elevator. If you are accelerating upward you feel heavier, and if you are accelerating downward you feel lighter. If the elevator cable broke, you would feel weightless since both you and the elevator would be accelerating downward at the same rate. The phenomenon of " weightlessness " occurs when there is no force of support on your body. When your body is effectively in "free fall", accelerating downward at the acceleration of gravity, then you are not being supported. The sensation of apparent weight comes from the support that you feel from the floor, from a chair, etc. Different sensations of apparent weight can occur on an elevator since it is capable of zero or constant speed zero acceleration and can accelerate either upward or downward. If the elevator cable breaks then both you and the elevator are in free fall. The resultant experience of weightlessness might be exhilirating if it weren't for the anticipation of the quick stop at the bottom.

A lift of mass 1000 kg

Power is a measure of the rate at which work is done - work done per unit time - and can be expressed as. Since work is the product of the applied force and the distance, power 1 can be modified to. Power is also a measure of the rate at which energy is converted from one form to another and can be expressed as. The work done by a 1 kW electric motor in 1 hour can be calculated by modifying 1 to. An electric winch is lifting a mass of kg 10m above the ground. The electric motor in the winch is W. The force weight acting on the mass due to the acceleration of gravity can be calculated as. The time required for the winch with the actual motor to lift the mass can be calculated by modifying 1.

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ISRO Draughtsman. Indian Coast Guard Yantrik. Assam Police Constable. Please update the Email address in the profile section, to refer a friend. A man weighs 80kg. Punjab Police Jail Warder. Karnataka SDA. CG Forest Guard. Central Bank of India Manager. Indian Bank SO. Calculate the initial thrust of the blast. Ask a doubt. Chhattisgarh Teacher. In figure shown below, a particle is travelling counter clockwise in circle of radius 10 m.

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AP Animal Husbandry Assistant. Nainital Bank. Maharashtra Arogya Vibhag Group C. Oil India Senior Officer. SECL Operator. Punjab Police Constable. The work done against gravity when a body is moved horizontally along a frictionless surface is. Bihar ANM. JSSC Constable. It is i lifted up with an acceleration 4. FCI Stenographer. CISF Driver. Tripura TET. Maharashtra Forest Department Stenographer.