Homework Help: physics

Posted by Justin on Wednesday, March 3, 2010 at 2:26pm.

A 1300-kg car rolling on a horizontal surface has speed v = 65 km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.3 m.

What is the spring stiffness constant of the spring?

physics - bobpursley, Wednesday, March 3, 2010 at 2:27pm
1/2 mv^2=1/2 k x^2

change v to m/s then solve for k
physics - Justin, Wednesday, March 3, 2010 at 2:32pm
1023.04 N/M
physics - Justin, Wednesday, March 3, 2010 at 2:37pm
i put 1023.04 as the answer and it said it was wrong
physics - Neil, Sunday, October 10, 2010 at 4:33pm
try using the correct sigfigs?
physics - Neil, Sunday, October 10, 2010 at 4:38pm
and ur answer is wrong neway

m=1300
v~18
x=2.3

now solve
physics - Abby, Sunday, March 18, 2012 at 8:59pm
79622?

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