Thursday

November 27, 2014

November 27, 2014

Posted by **monic** on Wednesday, October 10, 2012 at 11:25pm.

(a) What is his speed at the bottom of the swing if he starts from rest?

m/s

(b) What is his speed at the bottom of the swing if he pushes off with a speed of 5.00 m/s?

m/s

- physics -
**Elena**, Thursday, October 11, 2012 at 7:01pm(a) PE= mgh=mgL(1-cosα),

KE= mv²/2.

PE=KE

mgL(1-cosα)= mv²/2,

v=sqrt{2gL(1-cosα)}= ….

(b) PE+KE1=KE

mgL(1-cosα) + mv₀²/2= mv²/2,

v = sqrt{2gL(1-cosα) + v₀²}= …

**Answer this Question**

**Related Questions**

physics - Tarzan swings on a 27.0 m long vine initially inclined at an angle of ...

Physics - Tarzan swings on a 27.0 m long vine initially inclined at an angle of ...

physics - Tarzan swings on a 28.0 m long vine initially inclined at an angle of ...

physics... - Tarzan swings on a 26.2 m long vine initially inclined at an angle ...

Physics - Tarzan swings on a 27.0 m long vine initially inclined at an angle of ...

College Physics - Tarzan spies a 35kg chimpanzee in severe danger, so he swings ...

physics - Tarzan is often portrayed as swinging through the jungle from vine to ...

physics - Tarzan (m = 75 kg) tries to cross a river by swinging from a 10.0 m ...

Physics - Tarzan (m = 75 kg) tries to cross a river by swinging from a 15.0 m ...

Physics - Tarzan tries to cross a river by swinging from one bank to the other ...