A ball rolling on a table has a velocity with rectangular components vx = 0.60 m/s and vy = 0.80 m/s. What is the displacement of the ball in an interval of 2.5 s?
Answer to relevant QuestionsDuring a daring rescue, a helicopter rescue squad initially accelerates a little girl (mass 25.0 kg) vertically off the roof of a burning building. They do this by drop-ping a rope down to her, which she holds on to as they ...A net force of 4.0 N gives an object an acceleration of 10 m/s2. What is the mass of the object? Assuming ideal frictionless conditions for the apparatus shown in Fig. 4.40, what is the acceleration of the sys-tem if (a) m1 = 0.25 kg, m2 = 0.50 kg. and m3 = 0.25 kg. (b) m1 = 0.35 kg, m2 = 0.15 kg, and m3 = 0.50 kg? A rifle weighs 50.0 N and its barrel is 0.750 m long. It shoots a 25.0-g bullet, which leaves the barrel at a speed (muzzle velocity) of 300 m/s after being uniformly accelerated. What is the magnitude of the force exerted ...In the ideal setup shown in Fig. 4.43, m1 = 3.0 kg and m2 = 2.5 kg. (a) What is the acceleration of the masses? (b) What is the tension in the string?
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