Football Magnus Force GCSE Physics Question

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Question

8 marks

Show your working and give units for each calculated answer.

1(a)

A player takes a curling free kick. After leaving the player's foot, the football moves through the air. Name the force that acts opposite to the football's forward motion.

[1 mark]

1(b)

During the first

0.60 s

of the flight, the sideways component of the football's velocity changes from

0 m

/s to

3.6 m

/s. Calculate the mean sideways acceleration of the football. Use:

a cce l er a t i o n = c han g e in v e l oc i t y / t im e t ak e n

[2 marks]

1(c)

The football has a mass of

0.44 kg

. Use your answer to 1(b) to calculate the mean sideways resultant force on the football. Use: resultant

f or ce = ma ss x a cce l er a t i o n

[2 marks]

1(d)

The spin makes the football push the surrounding air sideways. Explain why the football then follows a curved path after it leaves the player's foot. Use Newton's third law and the idea of resultant force in your answer.

[3 marks]

Start the question to write your answer, receive marks and ask Sherlock Ohms for text help.