Review2
Practice Problems
1
An object with mass of grams is accelerated at m/s
2
. The net force acting on the mass is how many newtons.
2
If a kilogram object moves meters in seconds at a constant speed, its momentum is how many kg m/s?
3
A force of newtons acts on a 4 kilogram object for seconds. How many newtons, acting for seconds will produce the same change in momentum?
4
An elevator weighs newtons. It is raised a vertical distance of meters in 15 seconds. How much work was done (in joules)?
5
A baseball bat strikes a ball with an average force of 20000 newtons. If the bat stays in contact with the ball for a distance of meter, how many joules of kinetic energy will be transferred to the ball?
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