Question

In the given v - t graph, the distance travelled by the body in 5 second will be

time (in second)
a) 20 m
b) 40 m
c) 80 m
d) 100 m​

Answer 1

Answer:

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.

Answer 2

Answer:

d) 100

Step-by-step explanation:

displacement S1 =

area=1/2×(20+40) × 2+ 1/2 ×(1+2)20 =90m

for displacement S2=

area =1/2×1×20 = 10 m

total distance d=S1 +S2 = 90+ 10 =100m

So the correct answer is option (d) 100m