Questions in Motion in A Straight Line

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The position of a particle moving along the x-axis at certain times is given below. Which of the following describes the motion correctly Question Image
Consider the acceleration, velocity and displacement of a tennis ball as it falls to the ground and bounces back. Directions of which of these changes in the process
The displacement of a particle, moving in a straight line, is given by \[s = 2{t^2} + 2t + 4\] where \[s\] is in metres and \[t\] in seconds. The acceleration of the particle is
A body A starts from rest with an acceleration \[{a_1}\]. After 2 seconds, another body B starts from rest with an acceleration \[{a_2}\]. If they travel equal distances in the 5th second, after the start of A, then the ratio \[{a_1}:{a_2}\] is equal to
The velocity of a bullet is reduced from 200m/s to 100m/s while travelling through a wooden block of thickness 10cm. The retardation, assuming it to be uniform, will be
A body of 5 kg is moving with a velocity of 20 m/s. If a force of 100N is applied on it for 10s in the same direction as its velocity, what will now be the velocity of the body
A particle starts from rest, accelerates at 2 m/s2 for 10s and then goes for constant speed for 30s and then decelerates at 4 m/s2 till it stops. What is the distance travelled by it
The engine of a motorcycle can produce a maximum acceleration 5 m/s2. Its brakes can produce a maximum retardation 10 m/s2. What is the minimum time in which it can cover a distance of 1.5 km
The path of a particle moving under the influence of a force fixed in magnitude and direction is
A car, moving with a speed of 50 km/hr, can be stopped by brakes after at least 6m. If the same car is moving at a speed of 100 km/hr, the minimum stopping distance is

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