Short Answer
A 20.0-kg uniform plank is supported by the floor at one end and by a vertical rope at the other as shown in the figure.A 50.0-kg mass person stands on the plank a distance three-fourths of the length plank from the end on the floor. 
(a)What is the tension in the rope?
(b)What is the magnitude of the force that the floor exerts on the plank?
Correct Answer:
Verified
Correct Answer:
Verified
Q15: A uniform solid cylindrical log begins rolling
Q18: A very thin uniform rod,2.40 m long
Q21: A uniform disk,a uniform hoop,and a uniform
Q30: If two forces of equal magnitude act
Q31: An 82.0 kg-diver stands at the edge
Q32: A 3.00-kg ball rests in a frictionless
Q33: If <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6682/.jpg" alt="If and
Q34: A uniform sign is supported against a
Q37: A lawn roller in the form of
Q38: For the vectors shown in the figure,find