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If a footballer kicks a ball straight down the pitch at 6 ms-1 at an angle θ of 30° above the horizontal, what is the maximum height reached by the ball?

First we must remember our equations of motion, (SUVAT equations).S = Displacement U = Initial velocity V = Final velocity A = Acceleration T = TimeV = U + ATS = UT + (1/2)AT2

Answered by Lorcan M. Physics tutor

Explain what the terminal velocity of an object is.

The terminal velocity of an object is the highest velocity it can reach when falling through a defined medium, usually air in practice. This constant velocity is achieved when the net force applied to the...

Answered by Thomas N. Physics tutor

Explain the forces involved in a pendulum set up.

Just as the pendulum is released, the pendulum ball is at its maximum acceleration. The force due to gravity (weight) is acting vertically downwards, giving it a force component acting perpendicular to th...

Answered by Physics tutor

Why do I keep losing marks on 6 markers?

My best tips for you are: 1.) make sure you have 6 DIFFERENT points; a good way to keep each point clear is to write in bullet points instead of paragraphs (you can always write more than 6 if you think t...

Answered by Felix N. Physics tutor

A person swims from a depth of 0.5m to 1.7m below the surface of the sea. Denisty Sea Water = 1030 kg/m^3. g=Gravitational Field Strength = 9.8 N/kg. Calculate the change in pressure on the swimmer and give the unit.

Use equation: Pressure = density x depth in the fluid x gravitational field strength. We know the in increase in pressure will be the difference between the Final Pressure (at 1.7m) and the Initial Pressu...

Answered by Jack S. Physics tutor

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