Question

The position-time graph for a particle moving along x-axis is as shown. Average speed of the particle between t=0 to t=8s is
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Answer 1

Answer:

50/8 m/s

AV. SPEED= TOTAL DIST./ TOTAL TIME

Explanation:

FIRST OF ALL CONVERT (x-t) GRAPH INTO (v-t) GRAPH

THEN AREA UNDER V-T GRAPH GIVES DISTANCE

IN THIS CASE ITS ASKING SPEED, SO GRAPH SHOULD BE IN POSITIVE REGION ONLY!

THEN AS YOU DRAW IT

CALCULATIONS ARE

T.DISTANCE =4*5/2+4*10 = 50m

T. TIME= 8sec