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A professional race-car driver buys a car that can accelerate at 5.3 m/s2. The racer decides to race against another driver in a souped-up stock car. Both start from rest, but the stock-car driver leaves 1.4 s before the driver of the sports car. The stock car moves with a constant acceleration of +3.7 m/s2.
a) Find the time it takes the sports-car driver to overtake the stock-car driver. Answer in units of s.
b) Find the distance the two drivers travel before they are side by side. Answer in units of m.
c) Find the velocity of the race car when the two drivers are side by side. Answer in units of m/s.
d) Find the velocity of the stock car when the two drivers are side by side. Answer in units of m/s.
The speed of a passenger train is 16mph faster than the speed of a frieght train. The passenger train travels 330 miles in the same time it takes the frieght train to travel 250miles. find the speed of each train.
An electric motor with 3W of power is used to lift a .2 kg mass a height of .5 meters in 3.0 seconds
A particle is oscillating with simple harmonic motion with a period of T = 2.44 s, What is the amplitude of the particle's motion
Two mirrors meet at a 133° angle. If light rays strike one mirror at 40°, at what angle ? do they leave the second mirror?what is the value of h.
The bullet becomes embedded in the block. if the coefficient of kinetic friction between the block and surface is .65 what was the speed of the bullet at once before impact.
Consider the driven, damped harmonic oscillaror discussed. (a) Calculate the power dissipated by the damping force. (b) Calculate the average power loss, using the fact that the average of sin2( ?t+?) over a cycle is one-half.
A piece of tin has a mass of 25g and a volume of 4.3cm^3 a)what is the mass of 1 cm^3 b) what is the volume of 1g of tin c) what is the density of the tin d) what is the mass of 34cm^3 of the same type of tin e) what is the volume of 130g of the s..
Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. Assume that the masses of the chains, pulleys, and ropes are negligible and the crate is rising with an acceleration of 3.3 m/s..
Three resistors are connected in series across a battery, What is the greatest voltage that the battery can have without one of the resistors burning up, How much power does the battery deliver to the circuit
Assume that ABC has no Section 751(c) or 751(d) assets and ignore the accrual of interest on the partnership mortgage liability. If A accepts D’s offer, illustrate what is the amount and character of A’s gain or loss?
A box is dropped from a spacecraft moving horizontally at 27.0 m/s at a distance of 155 m above the surface of a moon. The rate of freefall acceleration on this airless moon is 2.79 m/s2.
A model rocket is launched straight upward with the initial speed of 70m/s. It accelerates with a constant upward acceleration of 3 m/s2 until its engines stop at an altitude of 180 m.
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