Work Energy Problem - Sliding Down a Ramp 

your teaching method is very good

Thank you so much Physics ninja I have a similar 7 marks question,now I know how to do it.

<a href="#" class="seekto" data-time="842">14:02</a> is it okay if i said fd=∆k Which means Mgd=1/2mv^2 Which means gd =1/2v^2 Then substitute with the values i know To get d

I’m getting 14.147 m by using a different method that’s worked in the past (energy transformations). Weird.

How about repeating using conservation of mechanical energy?

Would that be easier for the ramp part to calculate the resulting/net force and then calculate work done on the ramp as a product of the net force over distance1 ?...thanks for ur videos!!

There's one I'd like to see. A block of mass of 4 kg being pulled up a frictionless ramp by a constant force of 6 N. The ramp is 5 m high and 75 m long. If the block has some initial velocity, let's just say 3 m/s, what is the speed at the top of the ramp? I've made-up all these numbers. This isn't a homework problem or anything.

what if there is another ramp on the end

Can't see your writing st all