Physics: Projectile Motion (Coursework Sample)
A mass m is moving (on planet Earth) on a horizontal surface with a velocity ux = 30 ms-1. The mass reaches a ledge with a sharp vertical drop of 100 m above the ocean below (similar to a cliff edge). The mass moves off the ledge, travels through the air and lands in the ocean.
a) Calculate the furthest horizontal distance reached by the mass.
b) Explain, using words, why we are justified in using the uniform acceleration equations when considering the motion of this mass. State a scenario in which this approximation is no longer valid.
Physics: Projectile Motion
A mass m is moving (on planet Earth) on a horizontal surface with a velocity ux = 30 ms-1. The mass reaches a ledge with a sharp vertical drop of 100 m above the ocean below (similar to a cliff edge). The mass moves off the ledge, travels through the air and lands in the ocean.
a) Calculate the furthest horizontal distance reached by the mass.
b) Explain, using words, why we are justified in using the uniform acceleration equations when considering the motion of this mass. State a scenario in which this approximation is no longer valid.
1 R= ux×t
H=v+0.5gt2
100=0+0.5(9.810t2
100=4.905t2
T=4.515s
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