I've tried everything I can think of! Please help if you can.
1.As an elevator approaches the 6th floor, its upward velocity decreases from 9.3 m/s to 3.3 m/s in 3.8 s. Assuming constant acceleration, determine the force exerted in Newtons by the elevator floor on a passenger of mass 67 kg during this time interval.
2.A 32 kg boy hangs from a rope which passes over a pulley. A 42 kg mass is attached to the other end of the rope. Find the acceleration, in m/s2, of the boy.
3. A 32 kg girl is hanging from a rope hanging over a pulley. A 48 kg mass is attached to the other end of the rope. Find the tension in the rope in N.
1.As an elevator approaches the 6th floor, its upward velocity decreases from 9.3 m/s to 3.3 m/s in 3.8 s. Assuming constant acceleration, determine the force exerted in Newtons by the elevator floor on a passenger of mass 67 kg during this time interval.
2.A 32 kg boy hangs from a rope which passes over a pulley. A 42 kg mass is attached to the other end of the rope. Find the acceleration, in m/s2, of the boy.
3. A 32 kg girl is hanging from a rope hanging over a pulley. A 48 kg mass is attached to the other end of the rope. Find the tension in the rope in N.