Answer:
horizontal component = 10.54m/s
Explanation:
horizontal component = 13.2cos37°
horizontal component = 10.54m/s
work is done by the pulling force which is same as the tension force in the rope. the net work done is zero for the crate since crate moves at constant velocity. but there is work done by the tension force which is equal in magnitude to the work done by the frictional force.
T = tension force in the rope = 115 N
d = displacement of the crate = 7.0 m
θ = angle between the direction of tension force and displacement = 37 deg
work done on the crate is given as
W = F d Cosθ
inserting the values given above
W = (115) (7.0) Cos37
W = 643 J
Polar Bear-Carnivorous bear
Caribou-Also known as reindeer, herbivorous
Arctic Fox-White fox from arctic tundra
Arctic Hare-Polar rabbit, live in North American tundra
Snowy Owl-Large, white owl. Younger= darker plumage
Musk Ox-<span>Arctic mammal of the family Bovidae</span>
Rock Ptarmigan-Medium sized bird
M = 45.0 g in Kg 0.045 Kg
speed = 75.0 m/sec
Δp = m * speed
Δp = 0.045* 75.0
Δp = 3.375 kg.m/s
hope this helps!
