Author Question: A 5.00-m-long 200-N uniform ladder, rests against a smooth vertical wall with its base on a ... (Read 63 times)

ashley · **on:** Jul 29, 2018

A 5.00-m-long 200-N uniform ladder, rests against a smooth vertical wall with its base on a horizontal rough floor, a distance of 1.20 m away from the wall. The coefficient of static friction between the ladder and the floor is 0.200.

How far up the ladder, measured along the ladder, can a 600-N person climb before the ladder begins to slip? A) 1.50 m
B) 1.26 m
C) 1.05 m
D) 3.95 m
E) 4.56 m

Question 2

An ideal spring has a spring constant of 2500 N/m. is stretched 4.0 cm. How much work is required to stretch the spring by 4.0 cm?

A) 4.0 J
B) 0.00 J
C) 1.0 J
D) 3.0 J
E) 2.0 J