a constant horizontal force F of magni- : app tude 20 N is applied to block A of mass mA 4.0 kg, which pushes against block B of mass mB = 6.0 kg.The blocks slide over a frictionless surface, along an x axis. (a) What is the acceleration of the blocks?

Q: (a) What is the weight of a 4.03 kg backpack? (b) What is the acceleration of the backpack if a net…

A: Given, Mass of backpack, m=4.03 kg Force applied,F=10 N

Q: move a large crate of mass 32.0 kg across a rough floor, with coefficient of kinetic friction…

A: According to Newton's second law F = ma So acceleration a = F/m

Q: Tim pushes a 195kg lawnmower with a force of 850N at an angle of 35 degrees with respect to the…

A:

Q: of mass 875 kg applies the brakes, which lock the wheels. The car skids for 5.60 s in the positive…

A: Acceleration is the rate of change of the velocity of an object with respect to time.  Here, we…

Q: Two packing crates of masses m, = 10.0 kg and m, = 3.80 kg are connected by a light string that…

A:

Q: A person is mowing their lawn .they push their lawnmower which has a mass of 25 kg , to the right…

A: Given Data: The mass of the lawnmower is: m=25 kg The force acting in the right direction is: F=400…

Q: a) Find the resultant force and calculate its magnitude and direction (relative to the positive…

A:

Q: A child pulls a 35kg sled to the left along a horizontal surface covered by snow with a force of 22…

A:

Q: A skier of mass m slides up a hill for a distance d along surface coved with snow till it shops. The…

A:

Q: Just after opening a parachute of negligible mass, a parachutist of mass 90.0 kg experiences an…

A: Given: Mass of  parachutist (m) = 90 kg Upward acceleration (a)= 1.00 m/s2 Weight of parachutist (W)…

Q: Holding a long rope by its upper end, youlower it onto a scale. The rope has a mass of 0.13 kg per…

A: Given,

Q: A 7 kg carton lies on a plane tilted at an angle of 22.0oto the horizontal with the coefficient of…

A: Given :

Q: A compact car has a maximum acceleration of 2.6. When it carries only the driver and has a total…

A: Given: The initial total mass of the car is 1345 kg. The final total mass of the car is 1745 kg. The…

Q: ckey puck slides down a frictionless ramp with an acceleration of 5.00 m/s2. What angle does the…

A: We know that We have given that The hockey puck slides down a frictionless ramp with an acceleration…

Q: A person moves a 125 kg object by applying a force F = 450 N at an angle of 30° above the…

A:

Q: The force exerted by the wind on the sails of a sailboat is Fsail = 430 N north. The water exerts a…

A: Given data The magnitude of the force in the north direction is: Fy = Fsail = 430 N The magnitude of…

Q: In the figure, a block of mass m = along a horizontal frictionless floor by a cord that exerts a…

A: Given Data : Mass of the block = 5kg Force F at angle 25° = 12 N We use here newton's second law of…

Q: The 84-lb crate is carefully placed with zero velocity on the incline. What is the acceleration of…

A: Given: Mass of the crate = 84-lb Static friction coefficient μs =0.29 Kinetic friction coefficient…

Q: A 20-kg box that lies on top of a table is pulled horizontally by a force of 500 N. Find the…

A:

Q: A traveler pulls on a 25 kg suitcase strap at an angle 36° above the horizontal. If the suitcase…

A: Given data:  Mass (m) = 25 kg Angle (θ) = 36° , above the horizontal  Initial velocity (u) = 0 m/s…

Q: An elevator cab is moving downward by a cable. The total mass of the cab is 1950 kg. Find the…

A: Cab is moving with constant speed so the acceleration of the car is zero so according to Newton's…

Q: A person in a boat starts paddling, and it accelerates from 0 to 0.70 m/s in a distance of 0.51 m.…

A: Given,  mass of boat ,m = 83 kg distance, s = 0.51m Initial velocity, u = 0m/s Final velocity ,v =…

Q: Two horizontal forces, P and Q, are acting on a block that is placed on a table. We know that P =…

A:

Q: A father pushes his newborn baby in a running stroller with a force of 300 N. The handle is inclined…

A: Consider the free body diagram of the stroller with a baby.   Let the force applied by the father…

Q: An airplane of mass of 5000 kg has to perform an emergency landing.it makes contact with the ground…

A:

Q: wo forces act on a 16- kg object. The first force has a magnitude of 68N and is directed 24o north…

A: Given: The mass of the object is 16 kg. The first force on the object is 68 N directed to 24o north…

Q: A ramp with friction is inclined at 32.0◦ with respect to the horizontal. If the acceleration down…

A: Given: The angle of the inclination is 32o. The mass of the object is 5 kg. The acceleration of the…

Q: What is the acceleration of a 11 kg block down a frictionless incline, inclined at theta - 68…

A:

Q: An elevator filled with passengers has a mass of 1.70 × 10³ kg. (a) The elevator accelerates upward…

A: We have to find the tension in the cable supporting the elevator

Q: Two packing crates of masses m1 = 10.0 kg and m2 = 3.70 kg are connected by a light string that…

A: Consider the below free-body-diagram for both the blocks.

Q: A stock car accelerated from rest down a track length d=400.0m. In the absence of any friction the…

A: track length (d) = 400 m acceleration (a) = 26 ms2mass (m) = 990 kg fr = 1000 N

Q: The left ventricle of the human heartexpels about 0.070 kg of oxygenated blood straight upward…

A: Given data The mass of the blood is m = 0.070 kg. The force applied by the ascending aorta is F =…

Q: A 30-lb crate of eggs rests on the seat of a truck. (The seat may be represented as a straight line…

A: Given:weight of the crate, W = mg = 30 lbhere gravitational acceleration, g = 32 ft/s2therefore mass…

Q: (a) What is the tension in the rope? (b) What is the normal force with which the snow pushes…

A: Solution: a). The tension in the rope is due to the friction present across the connecting surfaces.…

Q: To keep a large crate moving across a rough floor, you push down on it at an angle (theta)= 26°.…

A: Givenangleθ=26°Mass (m)=30 kgCoefficient of kinetic friction =0.31

Q: A disk of mass m = 5kg on a frictionless surface F = 30i + 40j it slips under the effect of force.…

A:

Q: A 2540 kg test rocket is launched vertically from thelaunch pad. Its fuel (of negligible mass)…

A: Given Rocket mass (m)      = 2540 kg Acceleration (a)       = 1.50 m/s2 Time (t)…

Q: 100 N %3D 1 60° 30°

A: Component of a vector along x axis = A cos θ Component of a vector alone y axis =A sinθ

Q: a car of mass 2.0*10^3 kg is initialy moving at 21 m/s when the brakes are applied and the car is…

A:

Q: (a) What is the weight of a 4.00 kg backpack? (b) What is the acceleration of the backpack if a net…

A: Weight of any body of mass m is,  W=mg

Q: A massive missile has a mass of 1.95 × 106 kg at takeoff, and its engines produce a thrust of 3.9 ×…

A: Given that--- Mass = 1.95 × 106 kg. Thrust force = 3.9 × 107 N. We have to find--- (a) Find its…

Q: An incline is tilted at an angle of 6.7° above the horizontal. A box of mass 34 kg is pushed up the…

A: Required :  Force to move the box up the incline.

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: