A ball is thrown up with an initial velocity of 8 m/s and initial height of 1.5m above the ground. Calculate the maximum height the ball reaches and the time it takes to get there.
Travelling upwards
u = 8m/s v = 0 m/s a = -9.8m/s S = ? t = ?
v = u + at v2 = u2 + 2a(S - 1.5)
0 = 8 -9.8t 0 = 64 + 2*(-9.8)*(S - 1.5)
9.8t = 8 19.6*(S - 1.5) = 64
t = 0.816s (3.sf) S - 1.5 = 3.265m
S = 4.765m (3.sf)
ES
Related Physics A Level answers
All answers ▸A light is shone through a diffraction grating of slit spacing 4.5x10^5 lines per metre. The incident wavelength is 650nm. Find the angle produced by the incident light and the 2nd order maximum.
What is the photoelectric effect?
A ball of mass 0.25 kg is travelling with a velocity of 1.2 m/s when it collides with an identical, stationary ball. After the collision, the two balls move together with the same velocity. How fast are they moving?
What is the Photoelectric effect?