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Q1. Travelling at the speed of 14.10 m/s, driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the road is 0.650. What is the speed of automobile after 1.130 s have elapsed? Overlook the effects of air resistance.
Q2. Suppose that you lob the ball with an initial speed of v = 17.0m/s, at an angle of θ = 50.7° above the horizontal. At this instant your opponent is d = 11.7m away from the ball. He begins moving away from you 0.300s later, hoping to reach the ball and hit it back at the moment that it is h = 2.18m above its launch point. With what minimum average speed should he move? (Overlook the fact that he can stretch, so that his racket can reach the ball before he does.)
Two speakers, 6.00 m apart, are driven by the same audio oscillator so that each one produces a sound consisting of two distinct frequencies, 1000 Hz and 1360 Hz. The speed of sound in the room is 350 m/s.
A uniform shaft, fixed at one end & free at other, is twisted so that each cross - section rotates through an angle proportional to the distance from the fixed end. If the shaft is released from rest in this position, determine the s
A 3.60 long, 420 steel beams extends horizontally from the point where it has been bolted to the framework of the new building under construction. A 72.0 construction worker stands at the far end of the beam. What is the magnitude of torque about the..
Find the boundary layer thickness and drag on a given plate if Water at 15°C flows over a plate 2m long and 25cm wide at a velocity of 5 m/s along its length.
A harmonic wave travels in a wire with amplitude 6.05 mm, wavelength 0.451 m, and frequency 462 Hz. What is speed with which the wave travels.
The front 1.20 m of a 1600 kg car is designed as a "crumple zone" that collapses to absorb the shock of a collision.
A 75 g, 31 cm long rod hangs vertically on a frictionless, horizontal axle passing through its center. A 12 g ball of clay travelling horizontally at 2.1 m/s hits and sticks to a very bottom tip of the rod.
What is mass of the block of ice
Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.
Establish the temperature at the interface
A duck has a mass of 2.6 kg. As the duck paddles, a force of 0.11 N acts on it in a direction due east. In addition, the current of the water exerts the force of 0.12 N in a direction of 44° south of east. When these forces begin to act, the velocity..
A jetliner is moving at a speed of 274 m/s. The vertical component of the plane's velocity is 54.0 m/s. Conclude the magnitude of the horizontal component of plane's velocity.
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