Question

When a particle executes simple harmonic motion, its kinetic energy varies periodically with a period of 2 s. The time period of simple harmonic motion is


plz give me right ans.
no spamiing plz​

Answer 1

Explanation:

Let displacement of particle of mass m, x=Asinωt

ω=angular frequency of oscillation

frequency, f=

2π

ω

velocity v=

dt

dx

=ωAcosωt

So, K.E=

2

1

=mv

2

=

2

1

mω

2

A

2

cos

2

ωt

=

4

1

mω

2

A

2

(1+cos(2ωt))

Now for kinetic energy the cosine part determine frequency which is

f

′

.

2π

2ω

.

π

ω

−2ω

⇒f

′

.2f

Answer 2

Answer:

Mark as Brainlinet answer