Question

33. The distance covered by a body in one completa
vibration is 20 cm. The amplitude of the body i
(a) 10cm (b) 5cm (c) 15cm (d) 7.5cm​

Answer 1

Answer:

of particle executing S.H.M v=ω

a

2

−x

2

and acceleration, a=−ω

2

x

x= displacement at any time interval

a = amplitude=3cm

ω= angular frequency, =

T

2π

T=Time period

Now, at x=2cm

v=∣a∣

⇒ω

2

×2=ω

3

2

−2

2

⇒ω=

2

5

⇒

T

2π

=

2

5

⇒T=

5

4π