At what position (other than infinitely remote ones) can the 49.0 kg object be placed so as to experience a net force of zero?

Blocks with masses of 1.2 kg, 2.4 kg, and 3.0 kg are lined up in a row on a frictionless table. All three are pushed forward by a 14 N force applied to the 1.2 kg block. How much force does the 2.4 kg block exert on (a) the 3.0 kg block and (b) the 1.2 kg block?

A  mass of 2.78 kg is on a horizontal surface. An applied force of 33.5 N at an angle of -41.2 degrees with respect to the horizontal acts on the mass. What normal force does the surface exert on the mass? (Assume that gravity is in the system)

Three boats are each being pulled by one rope connected to the smallest boat (in a line). The weight of each boat starting with the one farthest from the pulling force: 30kg, 20kg, 10kg. The force is 190 N that is pulling them. What is the tension inbetween 10 kg and 20 kg boats (A) and inbetween 20 kg and 30 kg (B) ropes?

Two crates, one with mass 4.00 kg and the other with 6.00 kg, sit on the frictionless surface of a frozen pond, connected by a light rope. A woman wearing golf shoes (so she can get traction on the ice) pulls horizontally on the 6.00-kg crate with a force F that gives the crate an acceleration of 2.50 m/s22. (a) What is the acceleration of the 4.00- kg crate? (b) Draw a free- body diagram for the 4.00-kg crate. Use that diagram and Newton's second law to find tension T in the rope that connects the two crates. (c) Draw a free-body diagram for 6.00- kg crate. What is the direction of the net force on the 6.00-kg crate? Which is larger in magnitude, force T, or force F? (d) Use part (c) and Newton's second law to calculate the magnitude of the force F.

A large crate of mass m is placed on the back of a truck but not tied down. As the truck accelerates forward with an acceleration a, the crate remains at rest relative to the truck. What force causes the crate to accelerate forward? (a) the normal force (b) the force of gravity (c) the force of friction between the crate and the floor of the truck (d) the “ma” force (e) none of these

3. (a) A 1700 kg car is parked on a road that rises 18° above the horizontal. What are the magnitudes of (i) the normal force and (ii) the static frictional force that the ground exerts on tires? (b) A 52.5 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.678 and 0.283, respectively. What horizontal pushing force is required to (i) just start the crate moving and (ii) slide the crate across the dock at a constant speed?

Current Attempt in Progress Three astronauts, propelled by jet backpacks, push and guide a 100 kg asteroid toward a processing dock, exerting the forces shown in the figure, with F₁ = 27 N, F₂ = 55 N, F3 = 39 N, 0₁ = 30°, and 03 = 60°. What is the (a) magnitude and (b) angle (measured relative to the positive direction of the x axis in the range of (-180°, 180°]) of the asteroid's acceleration? (a) Number i (b) Number Units Units Fy R

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 particle of mass m1 accelerates at 5.00 m/s2 when a force F is applied. A second particle of mass m2 experiences an acceleration of only 1.15 m/s2 under the influence of this same force F. (a) What is the ratio of m1 to m2? m1 m2 =  (b) If the two particles are combined into one particle with mass  m1 + m2,  what is the acceleration of this particle under the influence of this force F?