A stone falls freely under gravity.It covers distances h₁,h₂ and h₃
A stone falls freely under gravity.It covers distances h₁,h₂ and h₃ in the first 5 s,the next 5 s, and the next 5 s respectively.The relation between h₁,h₂ and h₃ is
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(a) […]
Physics
A juggler maintains four balls in motion,making each of them to rise
A juggler maintains four balls in motion,making each of them to rise a height of 20 m from his hand.What time interval should be maintained for the proper distance between them?(take,g=10 ms⁻²)
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At a metro station, a girl walks up a stationary escalator in time t₁
At a metro station, a girl walks up a stationary escalator in time t₁.If she remains stationary on the escalator, then the escalator take her up in time t₂.The time taken by her to walk […]
A dust packet is dropped from 5th storey of a multi-storeyed building
A dust packet is dropped from 5th storey of a multi-storeyed building.In the first second of its free fall another dust packet is dropped from 7th storey 15m below the 9th storey.If both packets reach […]
Water drops fall from a top on the floor 5 m below at regular intervals
Water drops fall from a top on the floor 5 m below at regular intervals.If time,the first drop striking the floor when the fifth drop begins to fall.The height at which the third drop will […]
The motion of a particle along a straight line is described by equation
The motion of a particle along a straight line is described by equation : x= 8 + 12t– t³ where x is in metre and t in second. The retardation of the particle when its […]
A ball is dropped from a high rise platform at t = 0 starting from rest
A ball is dropped from a high rise platform at t = 0 starting from rest. After 6 seconds another ball is thrown downwards from the same platform with a speed v.The two balls meet […]
The position x of a particle with respect to time t along x-axis is given
The position x of a particle with respect to time t along x-axis is given by x = 9t² – t³ where x is in metres and t in second. What will be the position […]
A particle moving in a straight line with uniform acceleration is observed
A particle moving in a straight line with uniform acceleration is observed to be a distance a from a fixed point initially.It is at distance b,c,d from the same point after n,2n,3n seconds.The acceleration of […]
A particle moves a distance x in time t according to equation x = (t + 5)⁻¹
A particle moves a distance x in time t according to equation x = (t + 5)⁻¹. The acceleration of particle is proportional to
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(a) (velocity)^3/2 (b) (distance)^2 (c) (distance) ^ –2 […]