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Impulse
11) A shopping cart with a mass of 2 kilograms
accelerates in a straight line from 4 meters per
second to 8 meters per second due to the application
of a force whose duration is 0.5 seconds. What is the
magnitude of this average force?

A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?

Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is