1. a man walks round a park, first walking north for 80m, then turning right and walking
for 50m. he then turns right again, and after 10m takes a left turn and continues for
70m. how far has he travelled from his start point?

Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction

Which type of reaction is shown in this energy diagram ?