Question

2.
The acceleration of a body having the following v-t graph is
Dcos 30°
b) sin 300
c) cot 30°
d) tan 300​

Answer 1

Answer:

acceleration is nothing but slope of v-t graph..

it is tan 30°

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Answer 2

Answer:

Explanation:

Answer

Correct option is

B

tan25

∘

to tan50

∘

Acceleration a=

Δt

Δv

​

Thus slope of velocity Vs time curve gives the acceleration of body.

Line A makes an angle of 25

o

with time axis, thus its slope is equal to tan25

o

.

Hence acceleration of body A a

A

​

=tan 25

o

Line B makes an angle of 50

o

with time axis, thus its slope is equal to tan50

o

.

Hence acceleration of body B a

B

​

=tan 50

o

⟹ a

A

​

:a

B

​

=tan25

o

:tan50

o