Question

An object travelled from p to R through Q at uniform speed travel time is 10 seconds. observe to the given diagram and write down the answers to the question ​

Answer 1

Answer:

Magnitude of area under the v−t graph gives the distance travelled by the body.

For 0≤t≤4 s :

Displacement S

1

= Area =

2

1

×(20+40)×2+

2

1

×(1+2)×20=90 m

For 4≤t≤5 s :

Displacement S

2

= Area =

2

1

×1×20=10 m

Total distance d=S

1

+S

2

=90+10=100 m

Option A is correct.