List of top Physics Questions on Kinematics asked in TS EAMCET

The relation between the displacement 'x' (in metre) and the time 't' (in second) of a particle is \( t = 2x^2+3x \). If the displacement of the particle is 25 cm from the origin (x=0), then the acceleration of the particle is

A body projected at certain angle (\(\neq 90^\circ\)) from the ground crosses a point in its path at a time of 2.3 s and from there it reaches the ground after a time of 5.7 s. The maximum height reached by the body is (Acceleration due to gravity = 10 ms\(^{-2}\))

A horizontal force of 10 N is applied on a block of mass 1.5 kg which is initially at rest on a rough horizontal surface. The work done by the applied force in a time of 6 s from the beginning of the motion is (Acceleration due to gravity = 10 ms\(^{-2}\); the coefficient of kinetic friction between the block and the surface is 0.2)

The initial and final velocities of a body projected vertically from the ground are \( 20 \, \text{ms}^{-1} \) and \( 18 \, \text{ms}^{-1} \) respectively. The maximum height reached by the body is (Acceleration due to gravity = \( 10 \, \text{ms}^{-2} \))

A helicopter flying horizontally with a velocity of 288 kmph drops a bomb. If the line joining the point of dropping the bomb, and the point where bomb hits the ground makes an angle \( 45^\circ \) with the horizontal, then the height at which the bomb was dropped is (Acceleration due to gravity = \( 10 \, \text{ms}^{-2} \))

The driver of a bus moving with a velocity of 72 kmph observes a boy walking across the road at a distance of 50 m in front of the bus and decelerates the bus at 5 \( \text{ms}^{-2} \) by applying brakes and is just able to avoid an accident. The reaction time of the driver is