Kelvi

A horizontal bridge is built across a river. A student standing on the bridge throws a small ball vertically upwards with a velocity 4 m/s. The ball strikes the water surface after 4s. The height of the bridge above the water surface is (Take $g = 10$ m/s $^2$ ):

medium

Motion in a Straight Line

2023

physics

56 m

60 m

64 m

68 m

Explanation

To solve this problem, we will use the kinematic equations for uniformly accelerated motion. $\\$ Given: $\\$ • Initial velocity $u = 4$ m/s (upwards). $\\$ • Time of flight $t = 4$ s. $\\$

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A horizontal bridge is built across a river. A student standing on the bridge throws a small ball vertically upwards with a velocity 4 m/s. The ball strikes the water surface after 4s. The height of the bridge above the water surface is (Take g=10 g = 10 g=10 m/s2^22):

Explanation

Our AI powered practice platform can help you achieve your doctor dream.

A horizontal bridge is built across a river. A student standing on the bridge throws a small ball vertically upwards with a velocity 4 m/s. The ball strikes the water surface after 4s. The height of the bridge above the water surface is (Take $g = 10$ m/s $^2$ ):