Given the following F= 113.4 N G = 1.9 kg What is the magnitude of the acceleration of the system if the mass of the object on the table is 4 times the mass of G? Assume all surfaces are frictionless. F G Answer:
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- A block and sphere are connected by a cord that passes over a pulley as shown. Neglect friction and assume the cord is massless. Take m1 = 2.00 kg, m2 = 4.20 kg, and θ = 50.5°. What are the magnitude of acceleration (in m/s2) of the block and sphere?If the rocket sled starts with only onw rocket burning, what is the magnitute of its acceleration. Assume that the mass of the system is 2.50x10^3 kg, the thrust F=2.10x10^4N and the force of friction opposing the motion is known to be f=665N. a. What is the magnitude of its acceleration?Two masses in an Atwood machine are 3.3 kg and 14.9 kg, the vertical distance of the heavier body being 56.5 cm above the lighter one when they were hold stationery by student. However when they were suddenly released, what would be their common acceleration (m/s^2) ?
- If the rocket sled starts with onlyone rocket burning, what is the magnitude of its acceleration?Assume that the mass of the system is 2100 kg, the thrust Tis 2.4×104 N, and the force of friction opposing the motionis known to be 650 N. (b) Why is the acceleration not onefourth of what it is with all rockets burning?Paleontologists estimate that if a Tyrannosaurus rex had tripped and fallen, the ground would have exerted anormal force of approximately 260,000 N on its torso as it landed.Assuming the torso has a mass of 3800 kg, (a) find the magnitudeof the torso’s upward acceleration as it comes to rest. (For comparison, humans lose consciousness with an acceleration of about 7g.)(b) Assuming the torso of a T. rex is in free fall for a distance of 1.46m as it falls to the ground, how much time is required for the torsoto come to rest once it contacts the ground?A 50 kg object is acted upon by two forces (in N) F, = - 107 +50 7 and F, = 10 7 +50 7 What is the magnitude of its acce.
- A ball of mass m1 and a block of mass m2 are attached by a lightweight cord that passes over a frictionless pulley of negligible mass, as shown in theFigure 1.1. The block lies on a frictionless incline of angle q. Find the magnitude of the acceleration of the two objects and the tension in the cord. What happens in this situation if the angle q = 90O? What happens if the mass m1 = 0?What horizontal forcemust be applied to a largeblock of mass M shown inFigure P4.85 so that theblocks remain stationaryrelative to M? Assume allsurfaces and the pulley arefrictionless. Notice that theforce exerted by the string accelerates m2.assume that you are studying a cart and mass system. given m1 = 20kg and m2 = 30 kg and theta = 35 degrees, find the acceleration, a, and the tension, T, of the system.
- If F = 4=30 N and M = 2 kg, what is the acceleration of the system? Assume that all surfaces are frictionlessThe leg and cast in fig p4.40 weight 220n (w1) ,Determine the weight w2 and the angle ∝ needed so that no force is exeted on the hip joinby the leg plus the cast: Two boxes of mass ?1 = 63 kg and ?2 =127 kg are in contact and rest on a horizontalsurface. Force ? = 650 N is exerted on ?1. The coefficient of kinetic friction is μk = 0.2.Find the acceleration of the system of boxes. g = 10