Physics, 09.04.2020 23:47, jadbaubl1449
What is the maximum height h that the ball reaches above the equilibrium point? A student pushes a baseball of m = 0.19 kg down onto the top of a vertical spring that has its lower end fixed to a table compressing the spring a distance of d = 0.16 meters. The spring constant of the spring is k = 650 N/m. Let the gravitational potential energy be zero at the position of the baseball in the compressed spring.
Answers: 2
Physics, 22.06.2019 16:40, Crxymia
Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".
Answers: 3
What is the maximum height h that the ball reaches above the equilibrium point? A student pushes a b...
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