Abridge that was 5.0 m long has been washed out by the rain several days ago. how fast must a car be going to successfully jump the stream? although the road is level on both sides of the bridge, the road on the far side is 2.0 m lower than the road on this side.

The speed of the car is 7.84 m/s

Solution:

As per the question:

Length of the bridge, l = 5.0 m

Distance, d = 2 m

Now,

Time taken by the car to reach 2 m lower is given by the kinematic eqn:

where

u = initial velocity = 0 m/s

t = time taken

a = g =

Now,

Now, we kow that the car will cover the distance equal to the length of the bridge, i.e., 5 m

Speed of the car is given by:

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