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Q1. The driver of a 1700 car travelling on a horizontal road at 140 suddenly applies brakes. Due to the slippery pavement, friction of the road on the tires of the car, which is what slows down the car, is 23.0 of the weight of car.
What is the acceleration of car?
How many meters does it travel before stopping in the conditions?
Q2. Boat A negotiates a curve whose radius is 370 m. Boat B negotiates a curve whose radius is 120 m. Each boat experiences the similar centripetal acceleration. What is the ratio of speed of boat A to that of boat B?
question1one end of a horizontal string of linear density 6.9times10-4 is attached to a small-amplitude mechanical 150-
A 1.0-kg ball has a velocity of 12 m/s downward just before it strikes the ground and bounces up with a velocity of 12 m/s upward. What is the change in momentum of the ball
9 grams of Alum at 200 C and 21 grams of Copper anre dropped into 50 cm^3 of Ethyl Alcohol at 15 C. what was the intitial temp of the Copper
A ball on the porch rolls 60 {rm cm} to the porch's edge, drops 40 {rm cm}, continues rolling on the grass, and eventually stops 80 {rm cm} from the porch's edge.
A transformer is designed to step down the 206 volts to 16 volts. If there are 418 turns on the input coil, find how many turns should there be on the output coil
A 1000-kg rocket has a net propulsion force of 80 kN (kiloNewtons). Over a short time period, it uniformly speeds up from an initial velocity of 35 m/s to a final velocity of 60 m/s. What is the net work done on the rocket in kil
A certain current on passing through a galvanometer produces a deflection of 100 divisions. The galvanometer resistance would be
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A person with a mass of 60 kg climbs up to a diving board 4 meters above a swimming pool. How much work does the person do
An archer fires an arrow horizontally by pulling the bow string back a distance of 0.47 m before releasing the arrow which has a mass of 0.030 kg, how much work does the archer do on the system
One end of a cord is fixed and a small 0.550-kg object is attached to the other end, find the tangential and radial components of acceleration
The outside mirror on the passenger side of a car is convex and has a focal length of -7.7 m. Relative to this mirror, Find the image distance of the truck.
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