Homework Help: 12th grade Physics

Posted by Jane on Saturday, October 24, 2009 at 1:09pm.

how much tension must a rope withstand if it is used to accelerate a 1200-kg car vertically upward at .80 m/s^2?

12th grade Physics - Vipster, Saturday, October 24, 2009 at 1:13pm
Force required to accelerate the car vertically = m * (v^2)

= 1200 * (0.8^2)

= 1200 * 0.64

This force will be equal to the tension on the rope.
12th grade Physics - Sasha, Saturday, October 24, 2009 at 1:39pm
these are the answer choices though

Problem 10
13000 N
12000 N
11000 N
10000 N
12th grade Physics - Sasha, Saturday, October 24, 2009 at 1:40pm
13000N
12000N
11000N
10000N
12th grade Physics - bobpursley, Saturday, October 24, 2009 at 3:28pm
tension=mg+ma=m(9.8+.8)= to two decimal places.

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