Question

Find the total displacement of the body for the following v-t graph.

Answer 1

Explanation:

Distance= area under graph = area of five parts under graph =

2

1

×2×20+2×20+1×20+

2

1

×1×20+

2

1

×1×40

Distance=20+40+20+10+20=110m

Displacement = area above x axis −area under x axis =90−20=70m

Hence,

option (B) is correct answer