Exercise 1:
A small puck of mass m=150g is at rest on a horizontal surface. Ignore the frictional forces.
a) Calculate the magnitude of the normal force.
b) At t=0, we apply on the puck a horizontal and constant force F-0.30 N.
b.1) Calculate the acceleration of the puck.
b.2) Calculate the distance covered by the puck then its speed at t₁-0.50 s.
| Take
Take g-9.80m/s²