A simple pendulum makes 50 oscillations in one minute. What is its period of oscillation?
0.02s
0.20s
0.83s
1.20s
50.00s
Correct answer is D
No explanation has been provided for this answer.
66 kg
55 kg
44 kg
22 kg
11 kg
Correct answer is A
Reading = mg + ma = m(g + a) = 55(10 + 2)
= 660N = 66kg