A car takes 15 minutes to travel along a road that is 20 km long.
2 answers:
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You need to find speed, v.
And you (should) recognize the famous F=ma.
We've got data for F and m, so we can find a first!
a = 95N / 0.082 kg
Now from a we nees to find v. But how is v and a related?
where dv is the change in speed (some unknown v minus zero since arrow is initially at rest). dx is the distance where the arrow experiences a force (77 cm!).
Now you know values for a, dv, and dx... you can plug those in and find v!
And you (should) recognize the famous F=ma.
We've got data for F and m, so we can find a first!
a = 95N / 0.082 kg
Now from a we nees to find v. But how is v and a related?
where dv is the change in speed (some unknown v minus zero since arrow is initially at rest). dx is the distance where the arrow experiences a force (77 cm!).
Now you know values for a, dv, and dx... you can plug those in and find v!