Answer: Can't see the graph clearly.
The dog walked 5 meters backwards in the first 10 seconds, then 5 meters forward from 10-20 seconds. After 20 sec he was back where he started. Displacement (20sec) = zero.
This would be Newton's first law, which states that an object at rest will stay at rest and an object in motion will remain in motion unless acted on by an unbalanced force. Hope this helped.
This means that two objects will reach the ground at the same time if they are dropped simultaneously from the same height. ... When air resistance plays a role, the shape of the object becomes important. In air, a feather and a ball do not fall at the same rate.
(any unit of mass) x (any unit of speed) is a unit of momentum.
The only choice on the list with the dimensions of (mass) x (speed)
is 'c'.
'a' is a unit of force.
'b' is meaningless.
'c' is a false statement.
