Homework Statement
A 17 g bullet is accelerated in a rifle barrel
103 cm long to a speed of 392 m/s.
Use the work-energy theorem to find the
average force exerted on the bullet while it is
being accelerated.
Answer in units of N.
Homework Equations
The Attempt at a Solution...
Homework Statement
In the 1950’s, an experimental train that had
a mass of 22500 kg was powered across a level
track by a jet engine that produced a thrust
of 4.63 × 105 N for a distance of 533 m.
Find the work done on the train.
Answer in units of J.
Homework Equations
The...
Need help with velocity problems! PLease
Homework Statement
Work is also measured in Joules. If a 2.59 kg object moves a distance of 56.9 cm as a result of 38N of foce. How fast is the object moving.
Homework Equations
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The Attempt at a Solution
I started by trying to find the...