a test rocket is falling downward at a constant speed (however, it is acceleration in the horizontal direction). it is attached to a parachute with tension 980 N applied at an angle feta=64 degrees. draw a force diagram of all the forces acting on the rocket.  what is the mass of the rocket? what is the acceleration of the rocket in the x direction?

Martha is pushing a 35 kg chair across the floor. The coefficients of friction between the chair and floor are ? s = 0.70 and ? k = 0.40. a. How hard does she need to push horizontally to just start the chair moving? b. If she applies this same force once it is moving, then what is the resulting acceleration? Draw the free-body diagram for this situation.

You work at a garden store for the summer. You lift a bag of fertilizer with a force of 114 N, and it moves upward with an acceleration of 0.810 m/s². (a) What is the mass (in kg) of the fertilizer bag? kg (b) How much (in N) does the fertilizer bag weigh? N

An elevator loaded with tourists has a mass of 1750 kg. a.) The elevator accelerates upward (in the positive direction) from rest at a rate of 1.55 m/s2 for 2.3 s. Calculate the tension in the cable supporting the elevator in newtons b.) The elevator continues upward at constant velocity for 8.5 s. What is the tension in the cable, in Newtons, during this time? The elevator experiences a negative acceleration at a rate of 0.65 m/s2 for 2.6 s. What is the tension in the cable, in Newtons, during this period of negative accleration? c.) How far, in meters, has the elevator moved above its original starting point?

A box with mass 32.5 kg rests on a frozen pond, which serves as a frictionless horizontal surface. If a fisherman applies a horizontal force of 14.0N to the box causing it to accelerate to the right. What is the acceleration produced? How far does the crate travel in 10.0 seconds?

A squirrel (mass 526 g) sits at rest at the bottom of the tree. At some moment it starts running vertically up the tree and reaches a speed of 4.4 m/s in 0.96 seconds. Assuming that the acceleration is constant, a) What is the magnitude of the acceleration of the squirrel? 4.583 b) What is the magnitude of the force that the squirrel exerts on the bark of the tree during the acceleration phase? 2.410658 X

A box is placed on a rough floor. When you push horizontally against the box with a 40N force, the box just begins to slide. What is the magnitude of the friction force when you push against the box with a 25 N force? O58 N O 15 N O 40 N 98 N O none of the answers O 25 N

d , e and f

A 34.8 kg child is sitting at the top of a slide, which is inclined at an angle of 55 degrees with respect to the horizontal. Someone gives the child a quick push to get them moving, after which they slide down the incline without any further assistance. The coefficient of kinetic friction between the child and the slide is μ s  = 0.44. What is the magnitude of the acceleration (in m/s2) of the child?

A contestant in a winter sports contest pulls a 47 kg brick of ice 25 degrees in the positive horizontal direction with a rope over his shoulders over a frozen lake. Assume the coefficients of static and kinetic friction are µs=0.1 and µk=0.03. 1. Calculate the minimum force F he must exert to get the brick sliding in newtons.  2. What is its acceleration in m/s2 once it starts to move, if that force is maintained?