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.
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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