Joan comes across a deep ravine. She was planning on this as she packed a 3.8 m portable telescoping extension ladder. It has a mass of 15 kg. She was told that in order to get to the skull’s last known location, she must get across this 2 m gap.

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| \3.8m
| \
__|_2m\____
(a) What angle will the ladder make with the horizontal? Round to the nearest whole number.
(b) Now since she has carefully lowered the ladder down to the bottom, she isn’t entirely sure if it will hold. She knows her mass is 48 kg. First we need to find the normal force due to the vertical wall. What will it be? Round to the nearest whole number. Assume the vertical wall is frictionless.
(c) Using the normal force you just found, determine the force of friction between the ladder and the horizontal surface and compare it to the maximum allowed friction force between the ladder and horizontal surface. The coefficient of static friction is 0.75. Can she make it?
(d) If you answered yes, what will happen to the friction force as she climbs down the ladder? If you answered no, would it make a difference if there was friction between the ladder and the vertical wall?

Any form of guidance or help will be greatly appreciated.

Thank you!