I'm stuck on a science question from a past paper
A cyclist travelling along a straight level road accelerates at 1.2m/s^2 for 5 seconds. The mass of the cyclist and the bicycle is 80kg.
Calculate the resultant force needed to produce this accelerate.
I know resultant force = mass x acceleration, but this question is worth 3 marks, so I didn't think my answer was worth 3 marks.
I don't want the answer, but if you could please explain to my how to do this, that would be great:) Thank you!
A cyclist travelling along a straight level road accelerates at 1.2m/s^2 for 5 seconds. The mass of the cyclist and the bicycle is 80kg.
Calculate the resultant force needed to produce this accelerate.
I know resultant force = mass x acceleration, but this question is worth 3 marks, so I didn't think my answer was worth 3 marks.
I don't want the answer, but if you could please explain to my how to do this, that would be great:) Thank you!
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F = m*a = 80 kg*1.2 m/s² = 96 N
The time would be required to find the speed or distance covered, which is not a part of this problem:
V = a*t m/s
D = ½a*t² m
The time would be required to find the speed or distance covered, which is not a part of this problem:
V = a*t m/s
D = ½a*t² m
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use of F = m x a - 1 mark
calculation of F = 80 x 1.2 - 1 mark
resultant force acts horizontally along the straight level road - 1 mark
unit mark (N , newtons ) - 1 mark
calculation of F = 80 x 1.2 - 1 mark
resultant force acts horizontally along the straight level road - 1 mark
unit mark (N , newtons ) - 1 mark
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80 x 1.2 =96 2 marks
all you need is to add the units for the extra
which im unsure on
all you need is to add the units for the extra
which im unsure on