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A particle is moving in a circle of radius R in such a way that at any instant the normal and tangential components of the acceleration are equal. If its speed at t = 0 is u_(0) the time taken to complete the first revolution is :
23
Aug
A particle is moving in a circle of radius R in such a way that at any instant the normal and tangential components of the acceleration are equal. If its speed at t = 0 is u_(0) the time taken to complete the first revolution is : if A starts from rest is the initial [...]
Three different objects of masses m1, m2 and m3 are allowed to fall from rest and from the same point ‘O’ along three different frictionless paths .The speeds of the three objects on reaching the ground will be in the ratio of :
23
Aug
Three different objects of masses m1, m2 and m3 are allowed to fall from rest and from the same point ‘O’ along three different frictionless paths .The speeds of the three objects on reaching the ground will be in the ratio of : m2and m3 are allowed to fall from rest and from the same [...]
If a ball is thrown vertically upwards with 40 m/s, then velocity after two second will be
23
Aug
If a ball is thrown vertically upwards with 40 m/s, then velocity after two second will be If a ball is thrown vertically upwards with 40 m/s then velocity after two second will be August 23, 2020 Category: Chapter 2 - Vectors , Chapter 3 - Motion in a Straight Line , NEET Last 32 [...]
Two bodies A and B of each of mass 100gm are allowed to move along a frictionless typical path as shown below. In order to have the same kinetic energy for the both the bodies at M, the initial velocity that should be given to B, if A starts from rest is
23
Aug
Two bodies A and B of each of mass 100gm are allowed to move along a frictionless typical path as shown below. In order to have the same kinetic energy for the both the bodies at M, the initial velocity that should be given to B, if A starts from rest is if A starts [...]
The position x of a particle varies with time as x=at^2 − bt^3. The acceleration of particle is zero at time t equal to
23
Aug
The position x of a particle varies with time as x=at^2 − bt^3. The acceleration of particle is zero at time t equal to The position x of a particle varies with time as x=at^2 − bt^3. The acceleration of particle is zero at time t equal to August 23, 2020 Category: Chapter 2 - [...]
If a car at rest accelerates uniformly to a speed of 144 km/h in 20 s, then it covers a distance of:
23
Aug
If a car at rest accelerates uniformly to a speed of 144 km/h in 20 s, then it covers a distance of: If a car at rest accelerates uniformly to a speed of 144 km/h in 20 s then it covers a distance of: August 23, 2020 Category: Chapter 2 - Vectors , Chapter 3 [...]
A wedge with a rough circular track AB, is fixed on the plane x x’. The radius of the track is R and the coefficient of friction of the track varies as mu=mu_(0)x. Find the work done on mass m in moving from A to B. Here C is the centre of the circular track AB and x is the distance along +ve x “axis” from origin O.
23
Aug
A wedge with a rough circular track AB, is fixed on the plane x x’. The radius of the track is R and the coefficient of friction of the track varies as mu=mu_(0)x. Find the work done on mass m in moving from A to B. Here C is the centre of the circular track [...]
A car moving with a speed of 40 km/hr can be stopped after 2 m by applying brakes. If the same car is moving with a speed of 80km/hr, what is the minimum stopping distance? Assume constant retardation.
23
Aug
A car moving with a speed of 40 km/hr can be stopped after 2 m by applying brakes. If the same car is moving with a speed of 80km/hr, what is the minimum stopping distance? Assume constant retardation. A car moving with a speed of 40 km/hr can be stopped after 2 m by applying [...]
The system of mass `A` and `B` shown in the figure is released from rest with `x=0`, determine the velocity of mass `B` when `x=3m`. Also find the maximum displacement of mass `B`.
23
Aug
The system of mass `A` and `B` shown in the figure is released from rest with `x=0`, determine the velocity of mass `B` when `x=3m`. Also find the maximum displacement of mass `B`. determine the velocity of mass `B` when `x=3m`. Also find the maximum displacement of mass `B`. The system of mass `A` and [...]
A particle moves along a straight line such that its displacement s at any time t is given by s = 3t^3+ 7t^2+ 14t + 5. The acceleration of the particle at t = 1 s is
23
Aug
A particle moves along a straight line such that its displacement s at any time t is given by s = 3t^3+ 7t^2+ 14t + 5. The acceleration of the particle at t = 1 s is A particle moves along a straight line such that its displacement s at any time t is given [...]