A dog and a sledge are on the frictionless ice of a frozen lake, 11.6 m apart but connected by a rope of negligible mass. The dog exerts a certain horizontal force (N) on the rope. If magnitudes of the sledge and the dog accelerations are o.8 m/s and o.2 m/s2, respectively. How far from the dog's initial position (m) do they meet?

Two horizontal forces, and F2, are acting on a box, but only is shown in the drawing. F₂ can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that F₁ = +4.6 N and the mass of the box is 3.6 kg. Find the magnitude and direction of F2 when the acceleration of the box is (a) +6.9 m/s², (b) -6.9 m/s², and (c) 0 m /s². (a) F₂ (b) F₁₂ (c) F₂ = II ◄► ◄► F₁ +x

An object of mass 50kg is pushed in the +x direction with a force of 40N flat along a horizontal surface causing a net acceleration of 0.15m/s2 in the +x direction.  What is the coefficient of kinetic friction between the surface and the object?

A crate with mass m = 4 kg is submerging with constant acceleration aT = 0.65 m/s2 into the level earth. The free-fall acceleration is g = 9.81 m/s2.  Write an expression for the magnitude of the total force of the system in the y-direction, FT, in terms of the forces of the system.   Write an expression for the magnitude of the normal force FN, in terms of m, aT, and g.  What is the magnitude of the normal force in N?

A 3.45-kg object is moving in a plane, with its x and y coordinates given by x = 6t2 − 4 and y = 4t3 + 3, where x and y are in meters and t is in seconds. Find the magnitude of the net force acting on this object at t = 1.50 s.

A 945-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s when it reaches a speed of 30.0 m/s. What is the average force exerted on the car during this time? ( in kN eastward)

A(n) 878 kg drag race car accelerates from rest to 102 km/h in 0.962 s. What average force is exerted on the car?Answer in units of N.

A 392-kg boat is sailing 18.0° north of east at a speed of 1.90 m/s. 31.0 s later, it is sailing 35.0° north of east at a speed of 3.60 m/s. During this time, three forces act on the boat: a 32.6-N force directed 18.0° north of east (due to an auxiliary engine), a 21.1-N force directed 18.0° south of west (resistance due to the water), and  (due to the wind). Find the the magnitude of , in Newtons.

9:58 PM Sun Feb 27 blackboard.albany.edu A 令74% O exactly as strong as the force of gravity on a 3-kg mass QUESTION 3 1 points A rocket is launched vertically from the Earth, and the thrust (pushing force) from the engines is directed upward, and has a magnitude of 5.00 x 106 N. The mass of the rocket is initially 2.00 x 10° kg. What is the initial acceleration of the rocket, assuming you can neglect air resistance? 25.0 m/s? 15.2 m/s2 O 7.6 m/s? 50.0 m/s2 1 points QUESTION 4 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Sa Save All Answers

A 4.0 x 103 kg motor boat starts from a dock and begins to accelerate under a 2.0 x 104 Nforward force provided by its engines. If the boat's motion is retarded by the water with a6.5 x 103 N force of friction, what is its acceleration?