Someone please help :( Questions: 1. Find the normal force exerted on the bottom

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Someone please help :(

Questions:

1. Find the normal force exerted on the bottom of the ladder. ______ N

2. Find the tension in the rope when the monkey is two-thirds of the way up the ladder. _____ N

3. Find the maximum distance d that the monkey can climb up the ladder before the rope breaks. ____ m

x W Phys 1401-Spr 17 Hw4b s x (G how to print screen Go x ii Create Dues C Secure h ps://www.webassign.net/ s/submit?dep 5941344 Q5 web/Student/Assignment-Response 6. 115 points l Previous Answers SerCP10 8 P.088 My Notes Ask Your Teacher A 10.0-kg monkey climbs a uniform ladder with weight w 1.07 x 102 N and length L 2.60 m as shown in the figure below. The ladder rests against the wall at an angle of 60 The upper and lower ends of the ladder rest on frictionless surfaces, with the lower end fastened to the wall by a horizontal rope that is frayed and that can support a maximum tension of only 80.0 N. Rope

Explanation / Answer

a)The normal force exerted on the bottom of the ladder can be calculated as follows:

R = 10 x 9.8 + 1.07 x 10^2 = 205 N

Hence, R = 205 N

b)The tension can be calculated as follows:

considering the moments about upper end,

10 x 9.8 x cos60 x 2.6/3 + 107 x 2.6/2 x cos60 + T x 2.6 sin60 = 205 x 2.6 x cos60

T (2.25) = 266.5 - 42.47 - 69.55 = 154.48

T = 68.66 N

c)The max distance can be calculated as follows:

80 x 2.6 x sin60 = 107 x 2.6/2 x 1/2 + 10 x 9.8 x d cos60

d = 2.26 m

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