A body moves with constant speed v along the circumference of a circle of radius r. If it completes half of the revolution in 't' seconds, then the magnitude of the average acceleration is
A 0
B 2v/t
C v/t
D All the above
Answers
Answered by
1
Answer:
Correct option is
B
t
2v
a
avg
=avg.accl
n
=
t
2
−t
1
v
2
−
v
1
Initial velocity, v
A
=v
i
^
Final velocity,
v
B
=−v
i
^
a
avg
=
t
−v−(v)
=
t
−2v
or
t
2v
Answered by
0
Answer:
2v/
Explanation:
<a>:
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