In the real world, the pendulum in a clock eventually comes to a stop. Someone or something needs to supply energy for the clock
1 answer:
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Answer:
Part i)
h = 5.44 m
Part ii)
h = 3.16 m
Explanation:
Part i)
Since the ball is rolling so its total kinetic energy in this case will convert into gravitational potential energy
So we have
here we know that for spherical shell and pure rolling conditions
Part b)
If ball is not rolling and just sliding over the hill then in that case
Answer:
denisity = 52.33 g/c
Explanation:
Density:
We have that m = 785 and that v = 15 c.
d = 52.33
Answer:
The ball took 0.4 seconds
Explanation:
» From the second newton's equation of motion.
- s is displacement, s = 80cm, s = 0.8 meters
- u is initial velocity, u = 0 [ from rest ]
- g is 10 m/s²