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Physics, 27.10.2021 15:10 miyayo

1. a stone is thrown straight upward with a speed of 60.0m/s. how high does it go? (take g to be 9.8m/s².) 2. an object is projected vertically upwards with a velocity of 39.2m/s. find the times when displacement of the object is 58.8m. (take g to be 9.8m/s².)

3. two girls start running straight toward each other from two points 200m apart. one runs with a speed of 4.0m/s, and the other moves at 16.0m/s. how close are they from the slower one's starting point when they meet?
4. in a television electrons shot down the picture tube and strike fluorescent material on the screen, causing light to be given off and producing a picture. suppose that in a certain set, the electrons are accelerated from rest to 2.0 x 10⁸m/s in about 1.40cm. what is the acceleration of the electrons?
5. convert 106km/h to m/s.
6. define displacement.
7. a car moving at 4m/s along the x-axis accelerates uniformly to a velocity of 24m/s in 10 seconds. calculate;
(I) it's acceleration.
(ii) it's displacement in the 10 seconds.
(iii) the final velocity it would attain after 30 seconds if it continued it's motion at this rate.

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