Wednesday
April 23, 2014

Homework Help: Physics

Posted by josh on Wednesday, February 20, 2013 at 4:27pm.

Betty weighs 427 N and she is sitting on
a playground swing seat that hangs 0.22 m above the ground. Tom pulls the swing back and releases it when the seat is 0.88 m above the ground.
The acceleration of gravity is 9.8 m/s2.
Betty is moving 3.5967 m/s when the swing passes through its lowest position.
If Betty moves through the lowest point at 0.6 m/s, what is the magnitude of the work done on the swing by friction?
Answer in units of J

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - Betty weighs 427 N and she is sitting on a playground swing seat that ...
Physics - Betty weighs 449 N and she is sitting on a playground swing seat that ...
Physics - A uniform plank of length 5.0 m and weight 217 N rests horizontally on...
English Grammar - She is sitting in back of me. She is sitting in the back of me...
English - Identify the sentence that contains a noun cluase in italics. 1) Betty...
language - is my free verse peom correct? can you check for any errors? thank ...
English - Identify the sentence that contains a noun clause in italics. A. What ...
english - 4. Identify the sentence that contains a noun clause in italics. A. ...
math - If sandy and Betty have 192 toys in all and Sandygive Betty 50 toys so ...
language - This is my whole free verse poem. i hope it fully sends this time. ...

Search
Members