A crane does 9,500 J of work to lift a crate straight up using a force of 125 N. How high does the crane lift the crate?
1 answer:
You might be interested in
His average speed is 10.3 m/s
Explanation:
In this problem, Bolt is moving by uniform motion (=constant velocity and constant speed), so its average speed is given by
where
d is the distance covered
t is the time taken
In this race, Bolt has covered a distance of
d = 100 m
In a time of
t = 9.69 s
Therefore, his average speed is
Learn more about speed:
#LearnwithBrainly