your teaching method is very good

How about repeating using conservation of mechanical energy?

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

14:02 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

what if there is another ramp on the end

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

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.

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!!

@PhysicsNinja

9 ай бұрын

There are many ways to solve this problem. You either find the work done by each force or you find the work done by the net force, they are the same.

@sergeyborodin9211

9 ай бұрын

@@PhysicsNinja thanks again for ur videos! Some old farts like myself use them as part of recupiration)) cheers!

Can't see your writing st all