(a) express the height, h, of the object above the ground as a function of time, t; and (b) use the expression in (a) to find the time the object hits the ground and the velocity with which it strikes the ground.
(a) express the height, h, of the object above the ground as a function of time, t; and (b) use the expression in (a) to find the time the object hits the ground and the velocity with which it strikes the ground.
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An object is thrown vertically upwards with an initial velocity of 3 m/s from a ladder which is 5 m above ground level. Taking g to be 10 m/s/s, (a) express the height, h, of the object above the ground as a function of time, t; and (b) use the expression in (a) to find the time the object hits the ground and the velocity with which it strikes the ground.
a. h = -5 + 3t - 5t^2; t = 1.34 s; v = -10.4 m/s
b. h = 5 + 3t - 5t^2; t = 1.34 s; v = 10.4 m/s
c. h = -5 + 3t - 5t^2; t = 1.34 s; v = 10.4 m/s
d. h = 5 + 3t - 5t^2; t = 1.34 s; v = -10.4 m/s
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