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julsineya [31]
3 years ago
13

Two forces P and Q act on an object.Which diagram shows the resultant of these two forces?​

Physics
1 answer:
denis-greek [22]3 years ago
7 0
The Answer: diagram C
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A hotel elevator ascends 200m with maximum speed of 5m/s. Its acceleration and deceleration both have a magnitude of 1.0m/s2. Pa
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Answer:

45 s .

Explanation:

The accelerator will first accelerate , then move with uniform velocity and at last it will decelerate to rest .

displacement s = ?

acceleration a = 1 m /s²

Final speed v = 5 m/s

initial speed u = 0

v² = u² + 2as

5² = 0 + 2 x 1 x s

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B)  Let time of acceleration or deceleration be t

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