Question

A particle executes SHM of amplitude 5 cm and period 3s. The velocity of the particle at a distance 4 cm from the mean position –

• A. 8 cm/s
• B. 12 cm/s
• C. 4 cm/s
• D. 6 cm/s

Answer 1

Answer: (D)

6 cm/s

Answer 2

V = w$\sqrt{a^{2} - x^{2}}$ = $\sqrt{a^{2} - x^{2}}$

= $\frac{2 \times 3}{3}$ $\sqrt{25 - 16}$ = 6 cm/s