Question

A girl walks along a straight path to drop a letter in the letterbox andcomes back to her initial position. Herdisplacement–time graph is shown.find velocity in interval 0-50s





1)100m/s

2)2m/s

3)50m/s

4)5m/s

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Answer 1

Answer:

2 m/s because velocity is displacement /time

Answer 2

Answer:

From the graph

(1) initial velocity, u=0

(2)velocity after 50s,v=displacement/time

V=100/5=2ms^-1

(3)velocity after 100s,V=displacement/time

V=0/100=0

Explanation:

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