Physics, 02.11.2019 06:31 itsmemichellel
Ablock sliding on a horizontal surface is attached to one end of a horizontal spring with spring constant k=432 nm ; the other end of the spring is fixed in place. the block has a kinetic energy of 20.7 j as it passes through the spring's equilibrium position. as the block slides, a frictional force of magnitude 24 n acts on it. (a) how far will the block slide from the equilibrium position before coming momentarily to rest? (b) what will be the kinetic energy of the block as it slides back through the equilibrium position?
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If a rock is thrown upward on the planet mars with a velocity of 10 mys, its height in meters t seconds later is given by y − 10t 2 1.86t 2 . (a) find the average velocity over the given time intervals: (i) [1, 2] (ii) [1, 1.5] (iii) [1, 1.1] (iv) [1, 1.01] (v) [1, 1.001] (b) estimate the instantaneous velocity when t − 1.
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Ablock sliding on a horizontal surface is attached to one end of a horizontal spring with spring con...
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