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An electric vehicle starts from rest and accelerates at a rate of 1.7 m/s2 in a straight line until it reaches a speed of 27 m/s. The vehicle then slows at a constant rate of 1.0 m/s2 until it stops. (a) How much time elapses from start to stop? (b) How far does the vehicle move from start to stop?
Suppose a 61 kg boy and a 43 kg girl use a mass less rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the acceleration of the boy toward the girl.
The speed of object at displacement x = 20 m. The change in the momentum of the object at it is displaced from x = 12 to x = 20 m.
A 12.0 kg bucket of water of is suspended by a rope wrapped around a windlass, which is the solid cylinder 0.500 m in diameter with mass 14.0 kg. The cylinder is pivoted on a frictionless axle through its center. The bucket is released from rest at t..
Water is in the big beaker. Scale 1 reads 87 newtons, scale 2 reads 948 newtons, and scale 3 reads 0 newtons. The hanging block has a density of 10 × 10^3 kg/m3. To the nearest tenth of newton what does scale 1 read after the block is fully lowere..
An oscillator with a mass of 420 g and a period of 0.900 s has an amplitude that decreases by 1.90 percent during each complete oscillation.
A car is traveling at 61.6 km/hr on a flat, concrete highway. If the brakes are applied such that skidding occurs, the kinetic coefficient of friction between the road and tires is 0.802. If anti-lock brakes are properly applied then no skidding o..
Two 12-cm-diameter charged rings face each other, 17.0 apart. Both rings are charged to + 40.0. What is the electric field strength at the midpoint between two rings.
A car of mass = 1300 travelling at 56.0 enters a banked turn covered with ice. The road is banked at an angle, and there is no friction between the road and car's tires. What is the radius of the turn if = 20.0 (assuming the car continues in uniform ..
250 kg ball is dropped to the floor from a height of 1.0 m and upon rebounding, reaches a height of .60 m. What is the impulse delivered to the ball by the floor?
Two ants race across a table 74 cm long. One travels at4.64 cm/s and the other at 3.99999 cm/s. while first one crosses the finish line, how far behind is the second one? Answer in units of cm.
Find out the net force exerted on the fluid inside the box by summing momentum flow rates out through each of four sides of the box.
A 8 m x 11 m swimming pool slopes linearly from a 1 m depth at one end to a 3.8 m depth at the other. What is the mass of water.
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