Question

please answer the question ​

Answer 1

1) 4 m/s (still confirm from an expert)

2) Low friction

3) Low air resitance on the coin

4) Rolling friction

Answer 2

Answer:

1. (2)-as drag is directly proportional to the velocity of object in a fluid.
2. (1)-as the acceleration provided will be less.
3. (3)-if it would have been a vacuum then both would have fell to the ground simultaneously as both would experienced the same drag but it due to the air resistance that they experience different accelerations.
4. (4)-as the pressure inside them will be correct so the tyre will form almost a complete circle and because of formation of a circle the area in contact with the ground will be less and hence there will be less friction.

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HOPE THAT HELPS.

plZ MaRK as BrAinLIesT please.