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Question: Find the average accelerations that occurred while stopping the two objects in Example.
Example: If the baseball stops in the catcher's glove in 0.01s, the average rate of change of its momentum is -3.69kg m s-1/0.01s = -369kgm s-2. Similarly, if a 5-kg bowling ball moving at 8m s-1 stops at the end of the lane in (perhaps) a time of 0.01s, its rate-of-change of momentum is -40/0.01 = -4000kgm s-2. These two results mean that an average force of 369kgm s-2 acted on the baseball and an average force of 4000kgm s-2 acted on the bowling ball. Catching the baseball may sting a little; trying to catch the bowling ball would really hurt!
Two rockets having the same acceleration start from rest, but rocket A travels for twice as much time as rocket B, If rocket A reaches a speed of 390m/s , what speed will rocket B reach
An analysis of the overall effect of macroeconomic principles, theories, policies and tools that have influenced the economic decisions and strategy development
Two capacitors have the same plate separation but one has squareplates and the other has circular plates. The square plates are alength L on each side and the diameter of the circular plate is l.
An 1800 kilogram car drives east at 15 meter per second, and a 2350 kilogram truck drives east at 8.6 meter per second. Find the total momentum of this two-vehicle system
The reading of the scale shows the force exerted. Describe the design of a matched pairs experiment to compare the strength of the right and left hands, using 10 right handed people as subjects. (You need not actually do the randomization.)
Find out the energy dissipated by friction. Find the coefficient of kinetic friction between the tires and the road.
A dentist wants a mirror that, when 2.30 centimeter from a tooth, will produce a 2.5x upright image. evaluate what must its radius of curvature be
You select a rental package that includes a car with an average consumption of 6.00 \rm liters of fuel per 100 \rm km. how much (in US dollars) will you spend in fuel on your trip
Suppose you wish to fabricate a uniform wire from 1.30 g of copper. The wire is to have a resistance of R = 0.420 ?and all the copper is to be used. What must be the length of this wire
An initially stationary 2.7 kg object accelerates horizontally and uniformly to a speed of 16 m/s in 3.1 s. What is the instantaneous power due to that force at the end of the interval
A 100 W lightbulb produces 4.0 W of visible light. What is the light intensity on a wall 3.0 m away from the lightbulb
Ceres, the smallest identified dwarf planet in the Solar System, has a radius R = 480 km, Use these numbers to calculate the escape speed from the surface of Ceres
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