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m_a_m_a [10]
3 years ago
9

In a physics experiment, a ball is released from rest, and it falls toward the ground. The timer was not paying attention but es

timates that it took 1.5 s for the ball to fall the last 32 m. T/I (a) Calculate the velocity of the ball when it is 32 m above the ground. [and: 14 m/s [downward]] (b) Calculate the total displacement of the ball. [and: 42 m [downward]]

Physics
1 answer:
tigry1 [53]3 years ago
4 0

Answer:

(A) –14m/s

(B) –42.0m

Explanation:

The complete solution can be found in the attachment below.

This involves the knowledge of motion under the action of gravity.

Check below for the full solution to the problem.

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A wooden log is displaced to a distance of 20m in 10 seconds by applying 500N effort . Calculate the workdone and power.​
nata0808 [166]

A wooden log is displaced to a distance of 20m in 10 seconds by applying 500N effort . Calculate the workdone and power...

Solution,

displacement = 20 m

time = 10 sec

force = 500 N

work done = ?

power = ?

Now ,

work done = f × s

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Now ,

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6 0
3 years ago
If 35 J of work was performed in 70 seconds, how much power was used to do this task?
Irina18 [472]
P = w \times delta \: T
P = Power
W = Work
Delta T = Change of Time

So:
P = 35 Joules
Delta T = 70 secs
W = ?

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* Joule/Sec = Watt

Answer: The power used to do this task was 0.5 Watts.
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