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using the diagram below what is the net force on the box?
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- A 2 kg object accelerates at a rate of 5 m/s2 to the left, under the influence of two opposing forces. One of the forces has a magnitude of 20 N and is directed to the right. Determine the magnitude and direction of the other force.A 30.7 kg girl and a 59.8 kg boy are on the surface of a frozen lake, 10.5 m apart. Using a rope, the girl exerts a horizontal 4.20 N force on the boy, pulling him toward her. Calculate the magnitude of the girl's acceleration.Superman throws a 2400 N boulder at an adversary. What horizontal force must Superman apply to the boulder to give it a horizontal acceleration of 12.0 m/s2?
- A single, nonconstant force acts in the +?-direction on a 6.81 kg object that is constrained to move along the x-axis. As a result, the object's position as a function of time isA child on a sled (total mass 55 kg) accelerates down a 17.3 degree incline at 1.53 m/s^2. What is the magnitude of the forces opposing motionFast answer Find the forces (F1,F2,F3 lb) in Fig. 364. (A=52, B=43, C=22) deg, (D=5, E=6, F=2) ft, F4=6230 lb If F4 is negative, then the direction of F4 is down. A negative answer indicates that the direction is reversed. Answers can be checked by demonstrating that components balance. ans:3
- & » Q. A5 kg block is pulled across a table by a net force of 32 N. Calculate the acceleration of the object. To solve this problem vou must do -An object has a mass of 40 kg . It accelerate in a horizontal surface at the rate of 6m/s^2. The friction force on a object 20 N. Find the applied force on a object ?As a fish jumps vertically out of the water, assume that only two significant forces act on it: an upward force F exerted by a tail fin and the downward force due to gravity. A record Chinook salmon has a length of 1.50 m and a mass of 48.5 kg. if this fish is moving upward at 3.00 m/s as its head first breaks the surface and has an upward speed of 5.80 m/s after two-thirds of its length has left the surface. what is the magnitude of the force F during the interval
- A truck with a heavy load has a total mass of 5100 kg. It is climbing a 15∘ incline at a steady 15 m/s when, unfortunately, the poorly secured load falls off! Immediately after losing the load, the truck begins to accelerate at 1.5 m/s2. What was the mass of the load? Ignore rolling friction.A 300-kg bear grasping a vertical tree slides down at the constant rate of 0.2 m/s2 . The friction force between the tree and the bear isIn a TV commercial pickup truck B of mass mB lifts large crate A of mass mA toawrd the top of a cliff by means of a cable and a frictionless pulley. The truck uses constant thrust force F to do the job and accerates forward starting from rest, There are no friction forces except the thrust force F. a) Determine a symbolic formula for the magnitude of the acceration experienced by the crate. The final formula should not include the unknown tension force. b) explain whether the cable tension must be greater than, equal to, or less than the crate weight. c) for mass mA= 1500 kg, mb=2800 kg, and F=18,000N, how far will the crate rise in the first 3.5 s of motion?