Why Acceleration Was Defined

Q. If I dropped a feather and a metal ball, both weighing $10\text{kg}$, assuming there is no air resistance, will reach the ground .

1. metal ball
2. feather
3. both feather & ball
4. first
5. together

Q. If I dropped a feather and a metal ball, both weighing $10\text{kg}$, assuming there is no air resistance, will reach the ground .

1. metal ball
2. feather
3. both feather & ball
4. first
5. together

Q. If I dropped a feather and a metal ball, both weighing $10\text{kg}$, assuming there is no air resistance, will reach the ground .

1. metal ball
2. feather
3. both feather & ball
4. first
5. together

Q.

Why is landing pit in the long jump event made loose with a bed of sand?