Chapter 3 – Motion in a Straight Line
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A car accelerates from rest at a constant rate α for some time after which it decelerates at a constant rate β to come to rest. If the total time elapsed is t, the maximum velocity acquired by the car is given by
23
Aug
A car accelerates from rest at a constant rate α for some time after which it decelerates at a constant rate β to come to rest. If the total time elapsed is t, the maximum velocity acquired by the car is given by A car accelerates from rest at a constant rate α for some [...]
A stone released with zero velocity from the top of a water, reaches the ground in 4 s. The height of the tower is (g = 10m/s2)
23
Aug
A stone released with zero velocity from the top of a water, reaches the ground in 4 s. The height of the tower is (g = 10m/s2) A stone released with zero velocity from the top of a water reaches the ground in 4 s. The height of the tower is (g = 10m/s2) August [...]
A body is thrown vertically upward from the ground, it reaches a maximum height of 20 m in 5 sec. After what time, it will reach the ground from its maximum height position ?
23
Aug
A body is thrown vertically upward from the ground, it reaches a maximum height of 20 m in 5 sec. After what time, it will reach the ground from its maximum height position ? A body is thrown vertically upward from the ground it reaches a maximum height of 20 m in 5 sec. After [...]
The water drops fall at regular intervals from a tap 5 m above the ground. The third drop is leaving the tap at the instant the first touches the ground. How far above the ground is the second drop at that instant?
23
Aug
The water drops fall at regular intervals from a tap 5 m above the ground. The third drop is leaving the tap at the instant the first touches the ground. How far above the ground is the second drop at that instant? A particle moves along a straight line such that its displacement s at [...]
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 [...]
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 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 [...]
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 [...]