A block of mass 0.46kg starts from rest at point A and slides down a frictionless hill of height h. At the bottom of the hill it slides across a horizontal piece of track where the coefficient of kinetic friction is 0.50. This section (from points B to C) is 3.83m in length. The block then enters a frictionless loop of radius r= 2.70m. Point D is the highest point in the loop. The loop has a total height of 2r. Note that the drawing below is not to scale.
Here's the drawing: https://curie.johnabbott.qc.ca/res/ohiou/OUp200lib/mixed/fig/hill_loop.gif

Question

A block of mass 0.46kg starts from rest at point A and slides down a frictionless hill of height h. At the bottom of the hill it slides across a horizontal piece of track where the coefficient of kinetic friction is 0.50. This section (from points B to C) is 3.83m in length. The block then enters a frictionless loop of radius r= 2.70m. Point D is the highest point in the loop. The loop has a total height of 2r. Note that the drawing below is not to scale. 
Here's the drawing: https://curie.johnabbott.qc.ca/res/ohiou/OUp200lib/mixed/fig/hill_loop.gif

rajat97 · Answer

i cannot view the drawing

anonymous · Answer

2 - What is the minimum kinetic energy for the block at point C in order to have enough speed at point D that the block will not leave the track? 

3 - What is the minimum kinetic energy for the block at point B in order to have enough speed at point D that the block will not leave the track? 

4 - What is the minimum height from which the block should start in order to have enough speed at point D that the block will not leave the track? 

Thank you!

rajat97 · Answer

@poumon ???

anonymous · Answer

oh ill just draw it then. hold on!

rajat97 · Answer

yup !
and will you please wait for a moment , i'll get you just in a few moments

anonymous · Answer

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