Question

in a exprement to measure the speed of a moving ball, it is observed that the ball covers this distance of 5m and 20cm in 4 sec it comes to a stop. calculate the speed of the ball in m/s.

Answer 1

Answer:

very simple:

Speed = distance / Time

distance = 5m 20cm = 5.20m

time= 4 sec

So, Speed = 5.20/4

=1.3m/sec

Explanation:

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Answer 2

The speed of the ball is 1.3 m/sec.

Given,

A ball covers a distance of 5m and 20cm in 4 seconds.

To Find,

The speed of the ball in m/sec.

Solution,

First of all, we will convert the given distance into meters.

Distance = 5 m 20 cm.

1m = 100 cm

1 cm = 1/100 m

20 cm = 20/100 m

20 cm = 0.2 m

So, the distance in meters will be 5.2 m

Now, the formula to calculate the speed of an object is

Speed = Distance/time

Speed = 5.2/4

Speed = 1.3 m/sec

Hence, the speed of the ball is 1.3 m/sec.

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