Question

a body of mass 2kg moving along a circular path of radius 3 meter with increasing speed. V¹ = 0m at t¹ = 0s.

V² = 3m\s at t² = 25.
V³ = 6 m\s at t³ = 45
calculate
(I) Centripetal acceleration ac at t = 2sec
(ii) tangential acceleration during t = 0 to 2 sec​

Answer 1

Explanation:

m=2 kg , V= 3 m/s , r= 3 m

⇒ centripetal acceleration a

c

=

r

V

2

=

3

9

=3m/l

2

tangential acceleration a

T

=4m/s

2

⇒ Net acceleration a=

a

c

2

+a

T

2

=

9+16

⇒a=5m/s

2