Question

ANGLE IS 30 DEGREES

PRACTICE IT 

Use the worked example above to help you solve this problem. A sled is tied to a tree on a frictionless, snow-covered hill, as shown in Figure (a). If the sled weighs 75.0 N, find the magnitude of the tension force T exerted by the rope on the sled and that of the normal force n exerted by the hill on the sled. T = n=

Use the values from PRACTICE IT to help you work this exercise. Suppose a child of weight w climbs onto the sled. If the tension force is measured to be 61.5 N, find the weight of the child and the magnitude of the normal force acting on the sled. W = n = z 

Answer 1

ア= mgcose Tree mgsine 300 mg cosø Mg=75N Teasien ノn The Bop Tmgsine Tz ヌSスSin30 300 Sin30 75x 37.5y 1 normal force Mgcose 1 - *5x364.95N 子5X COS 30

Tree 75+w Ca find by above Tension force Cquntibn here |Sum oメ weightoズ Jed ond child New. 61.5N T 30 75t W MG New 1 T61-5N 61.5-5t) Sin 30 (61.5-3+ 5) Xd47 Ms 75+47 122N 12ax Ne New yew 105.65