1.

A scooter, which is starting from rest moves with a con-stant acceleration for a time Deltat_(1) then with a constant velocity for the next Deltat_(2) and finally with a constant decelcration for the next Deltat_(3) to come to rest. A 500 N man sitting on the scooter behind the driver manages to stay at rest with respect to the scooter without touching any other part. The force exerted by the seat on the man is

Answer»

500 N THROUGHOUT the JOURNEY
less than 500 N throughout the journey.
more than 500 N throughout the journey.
`gt 500 N` for time `Deltat_(1) and Deltat_(3) and 500 N` for `Deltat_(2)`

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