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Travelling upwards

u = 8m/s     v = 0 m/s      a  = -9.8m/s       S = ?        t = ?

v = u + at                                      v²  = u² + 2a(S - 1.5)

If the person weighs 620N on Earth, their mass is 620/9.8=63.3kg on Earth. Therefore applying F=ma they must weigh 63.3*3.8=240N on Mars.

Sharpness describes how well the edges of structures in an x-ray image are defined, while contrast describes the difference in degree of blackening of adjacent structures.

Newton's second law: F_net = m.a. The net force (vector) on an object is directly proportional to the product of its mass (sca...

A scalar quantity is one that has a magnitude (size) only, and no associated direction in which that size 'points'. A good example of a scalar is temperature, because temperature has a size (for example 2...