Laws of Motion

Related Questions

• A body of weight 64 N is pushed with just enough force to start it moving across a horizontal floor and the same force continues to act afterwards. If the coefficients of static and dynamic friction are 0.6 and 0.4 respectively, the acceleration of the body will be (Acceleration due to gravity = g)

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• A body of mass 2 kg is hung on a spring balance mounted vertically in a lift. If the lift descends with an acceleration equal to the acceleration due to gravity ‘g’, the reading on the spring balance will be

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• A block is lying on an inclined plane which makes 60° with the horizontal. If coefficient of friction between block and plane is 0.25 and $g = 10\,m/{s^2}$, then acceleration of the block when it moves along the plane will be

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• A plumb line is suspended from a ceiling of a car moving with horizontal acceleration of a. What will be the angle of inclination with vertical

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• A boy whose mass is 50kg stands on a spring balance inside a lift. The lift starts to ascent with an acceleration of $2m{s^{ - 2}}.$ The reading of the machine or balance $(g = 10\,m{s^{ - 2}})$is

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