Homework Statement
A person with a mass of 80.6 kg jumps from a squat position into the air. The velocity
at the beginning of the jump is zero. Fast motion video analysis reveals that the
velocity of the centre of mass at take-off was 5.3 ms-1. Foot contact time when the
ground reaction...
Homework Statement
A ball is thrown at a velocity of 10 m/s, at an angle of 30° from horizontal and released 2 m
above the ground. What will the magnitude of ball’s resultant velocity be at the moment of
impact with the ground?
Homework Equations
Vf2 = vi2 + 2as
The Attempt at a...
Homework Statement
A person with a mass of 80 kg applies a vertical force to the ground of magnitude
2000 N, and has a braking force of 1000 N. What is the resultant acceleration of the
person (magnitude only)?
Please help, never done physics before. Thanks
Homework Equations...