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1) The acceleration of a train that increases its velocity

/in /by

1) The acceleration of a train that increases its velocity from 10.0
m/s to 16.0 m/s in 3.50 seconds is _____ m/s^2.
Only enter your numerical answer below – do not include units. Report your answer to 2 decimal places.
Answer:
2) Preparing for a turn, a bus slows down with an acceleration of -2.0 m/s^2. Calculate how much time it takes the bus to slow down from 13.0 m/s to 5.0 m/s.
Only enter your numerical answer below – do not include units. Report your answer to 2 decimal places.
Answer:

3) An 77 kg man starts from rest and after 1.25 seconds is running at a speed of 10.0 m/s. The force needed for this man to get up to this speed in 1.25 seconds is ____ N.
Only enter your numerical answer below – do not include units. Report your answer to 2 decimal places.
Answer:

4) If the engines of a jet produce a force of 150,000 N, the acceleration of a 27,000 kg aircraft during takeoff is ____ m/s^2.
Only enter your numerical answer below – do not include units. Report your answer to 2 decimal places.
Answer:

5) A 43 N horizontal force pushes on a 3.8 kg mass resting on a horizontal surface. The surface exerts a friction force of 16 N against the motion. The acceleration of the 3.8 kg mass is ____ m/s^2.
Only enter your numerical answer below – do not include units. Report your answer to 2 decimal places.
Answer:

 
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