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Kendra moves a wagon weighting 1500 grams along a flat road by pulling with a force of 10 newtons with an angle of 37 degrees above the horizontal. If the wagon started at rest and that friction is negligible, how much work does she do on the wagon in 4 seconds?
a 51 kg student is in a 8 kg sled at rest at the top of a hill. the student slides down the hill and reaches a speed of 116 km/h at the bottom. How high is the hill? express as m and round off to one decimal place
motion, with a frequency 120Hz. Find (a) the amplitude, (b) the maximum blade speed and (c) the
magnitude of the maximum acceleration of blade.
Consider a bob attached to a vertical string. At t = 0, the bob is displaced to a new position where the string makes -8° with the vertical and is then released from rest. If the angular displacement θ(t) is written as a cosine function, then the phase constant φ is:
A boy in a 100 m flat race accelerates from rest and completes the race in 15 s. Sketch a velocity-time graph for his motion.
hi i live in hawkesbay new zealand and get to see the sun come up over the sea most days , it takes about 7 minutes and i have been wondering with the spin of the earth how far have i traveled in those 7 minute , cheers
The object of mass 5kg was released from rest. Using the principle of conservation of energy,
Determine;
i. The speed of the 3.0kg object just as the 5.0kg object hits the ground.
ii. The maximum height to which the 3.0kg object rises.
Calculate the value of θw, in degrees.
