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Explain the motion and forces on a falling object as it approaches terminal velocity.

Key points for understanding: -The resultant force on the object is the vector sum of all forces on an object. - Acceleration is a rate of change of velocity. -Resultant force causes acceleration. Changes in...
KB
Answered by Kameron B. • Physics tutor
4088 Views

What is the difference between a transverse and a longitudinal wave?

A wave is a transfer of energy of particles. In the case of a transverse wave, the particles oscillate perpendicular to their direction of movement (i.e it looks like they are moving up and down) and in the ...
HW
Answered by Harry W. • Physics tutor
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If a ball is launched at ground level at a velocity v and angle θ, find an expression for it's height at horizontal distance x.

Firstly it must be understood that vertical and horizontal motion can be treated as independent, as they are perpendicular to each other (and acceleration due to gravity only affects the y component of veloc...
OP
Answered by Oscar P. • Physics tutor
3651 Views

What is the reaction force? (eg from the ground or table)

The reaction force is the force that the table exerts on an object which is pressing on it. The reason there is a reaction force is because the table is made of atoms and you can imagine these atoms been con...
NW
Answered by Nick W. • Physics tutor
4596 Views

Give an example of ionising radiation

gamma, beta, ultraviolet
RC
Answered by Rocio C. • Physics tutor
2380 Views