During a bicycle race a cyclist who had a mass of 50kg used a bike with a

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mass of 20kg. As he began the race,? If the cyclist hit a car at exactly 20secof the race, what force would he exert on the car?
105N
75N
1250N
70kg
700N

What is the acceleration of the cyclist from 10s to 20s?
15m/s2
0.75m/s2
15m/s
25m/s2
10m/s2
1.5m/s2

How much momentum did the man on the bike have at the end of the first 10s of the race?


In order to calculate the amount of work that was done by the cyclist over the 1000m, the information that is needed would include ________.
A.distance that was covered only.
the acceleration of the man and the mass of the man only.
B.mass of man, mass of bike, total distance covered, acceleration of man and bike for the distance only.
C.mass of man and the acceleration of man only.

How much work was done during the 1000m of the race?


What is the mass of the cyclist and his bike?

What is the weight of only the cyclist?

At exactly 10 sec of the race, what is the instantaneous speed of the cyclist?
 
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