A 50. g pendulum swinging back and forth has a speed of 3.0 m/s at a height of 0.30 m. Determine the total mechanical energy of

Question

mario62 [17]

3 years ago

13

A 50. g pendulum swinging back and forth has a speed of 3.0 m/s at a height of 0.30 m. Determine the total mechanical energy of

the pendulum.
370 J
220 J
0.22 J
0.37 J

Physics

2 answers:

mr Goodwill [35] · Answer 1 · 2022-06-19T13:36:55+03:00

mr Goodwill [35]3 years ago

7 0

Answer:

it is .37 J

Explanation:

Lena [83] · Answer 2 · 2022-06-19T12:14:19+03:00

Lena [83]3 years ago

4 0

The answer is D 0.37 J
convert 50 g to kg and you get .05 kg
the total mechanical energy is kinetic energy plus the potential energy.
so Etotal=1/2mv^2+mgh
Etotal=1/2*(.05kg)*(3.0m/s)^2+(.05kg)*(9.8m/s^2)*(0.30m)
Etotal=0.37 J