1. An elevator is moving up at a constant velocity of 2.5 m/s, as illustrated in the diagram below: The passenger has a mass of 85 kg,
a. Construct a force diagram for the passenger

What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.

When you drop a pebble from height a it reaches the ground with speed v if there is no air resistance. from what height should you drop it so it will reach the ground with three times the speed? (a) 9m (b) 3m (c) 6m (d) 18m

Ababy stroller is a rest on top of a hill which is 10 m high. the stroller and baby have a mass of 20 kg. what is the potential energy of the baby and stroller?