Recent content by sacred76

Can I assume that it's Elastic potential energy = Kinetic energy which is 1/2Fx = 1/2mv2?

Is it using 1/2Fx? Elastic potential energy = 1/2 x 30 N x (0.3 m) = 4.5 J

Is it 30 N? Sorry, I'm completely lost here as I can't really comprehend the above. Could you please show me the working/equation for me to digest?

Errr...I'm lost & confused :headbang:. Please teach me how to do it. TQ I used mgh = 1/2mv2 Working : mgh = 1/2mv2 m x 10 x 0.3 = 1/2 x m x v2 3 = 1/2v2 v2 = 6 v = 2.45 m/s

Hi all! I was attempting the following question but my answer differed from the given answer. Please help me to solve it. Thanks. My answer = 2.45 m/s Given answer = 3 m/s