A sled of mass 50 kg is pulled horizontally over flat ground. The static friction coefficient is 0.30, and the sliding friction coefficient is 0.10. (a) What does the sled weigh? (b) What minimum amount of force must be applied to the sled in order to start it moving? (c) What amount of applied force will keep it moving at a constant velocity of 3.0 m/s? (d) What amount of applied force will accelerate the sled at 3.0 m/s2?

Q: A 7kg block is placed on an inclined that is 24 degrees to the horizontal. It has a coefficient of…

A: Given:- The mass of the block m = 7 kg  The inclined plane at an angle of 24 degrees to the…

Q: A block with a mass of 7 kg is placed on an incline. If the static friction coefficient between the…

A: Draw the free-body diagram of the system as:

Q: Mary applies a force of 71 N to push a box with an acceleration of 0.52 m/s². When she increases the…

A:

Q: A block initially at rest slides down a ramp of length L that makes an angle of θ with the…

A: Given information: The angle of inclination of the ramp = θ The length of the ramp = L The…

Q: A lamp hangs vertically from a cord in a descending elevator that decelerates at 1.9 m/s2. (a) If…

A:

Q: A 16 kg block rests on a 29 degree inclined frictionless surface and is attached by a light string…

A: Solution:-Given thatm1=16 kgm2=29 kgg=9.8 m/s2Inclined surface-frictionlesspulley-massless &…

Q: A lamp hangs vertically from a cord in a descending elevator that decelerates at 1.9 m/s2. (a) If…

A:

Q: A tractor is speeding up at 3 m/s/s while pulling a 691 kg sled with a rope at an angle of 23…

A:

Q: 17. Two packages are connected by a very light string that goes over an ideal pulley as shown in the…

A: mass of package, mA=3 Kg the angle of inclination of the rough plane, θ=30° coefficient of friction…

Q: A bus of mass 760 kg requires 120 m to reach certain velocity value Vf. Ignore friction and drag…

A: SOlution:

Q: am designing a ramp to slide boxes down. The angle of the ramp is 35º. A plastic box massing 30 kg…

A: angle of friction          tanθ=μ if  μ > μs=k  then no slide  μ < μs=k   slide

Q: On a rough surface you want to pull a heavy object of 125 kg, if the coefficient of friction is µk =…

A:

Q: A 976-kg crate is placed on an adjustable inclined plane. As one end of the incline is raised, the…

A:

Q: A Person received a huge package from an unknown sender. He tries to move the package by pushing it…

A: The FBD of the of the package is shown below: The forces acting are: Weight, mg downward Normal…

Q: A 15-kg box sits at rest on a 15° incline. If the coefficient of static friction is 0.3 between the…

A: Given Data Mass of the box is m=15 kg Angle of inclination of the incline is θ=15° Coefficient of…

Q: A man is pulling two boxes, one on top of the other, up the ramp shown by pulling on a rope parallel…

A: We need to find out the magnitude of the maximum acceleration the man can pull the boxes up the ramp…

Q: A 49.0-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic…

A:

Q: A constant applied force F, of 15.0 N pushes a box with a mass m = 7.00 kg a distance x = 15.0 m…

A: Given: Applied force Fp=15.0 N. Mass of the block m=7.0 kg. Distance traveled by block x=15.0 m. The…

Q: A 645 kg car is being pushed along a flat parking lot at a constant speed of 1.78 m/s. The…

A: The mass of the car, m=645 kg The velocity of the car, v=1.78 m/s The coefficient of friction…

Q: The coefficient of static friction between a sled and the snow is 0.3, with a coefficient of kinetic…

A:

Q: A box of books weighing 30-kg is pushed across the floor of an apartment by a force of 300 N exerted…

A: Mass of box = 30kg Force exerted on box = 300N Coefficient of kinetic friction = 0.57 Box move…

Q: A 1070-kg car is being pulled up a frictionless ramp at a constant speed, as shown in the figure.…

A:

Q: You are pushing a 10 kg table across a level floor with a force of 30 N. You are causing it to…

A:

Q: A 55-kg box rests on a horizontal surface. The coefficient of static friction between the box the…

A: The mass of the box=55kg.The coefficient of static friction =0.30.The coefficient of kinetic…

Q: 3. A block slides down a smooth 30° inclined plane in a time t seconds. If the plane were rough the…

A:

Q: Two masses are connected by a rigid link as shown in Fig. Q3. The masses are resting on an inclined…

A: Draw the free body diagram as below. The mass of block A, mA=8 kg The mass of block B, mB=4 kg The…

Q: A 17 kg block rests on a 32 degree inclined frictionless surface and is attached by a light string…

A:

Q: A lamp hangs vertically from a cord in a descending elevator that decelerates at 1.8 m/s?. (a) If…

A:

Q: A 23.4 kg box rests on an inclined plane creating an angle of 34.5° from the horizontal. What is the…

A:

Q: A 489-kg crate is placed on an adjustable inclined plane. As one end of the incline is raised, the…

A: let friction force is f  gravitational force down the incline  = mgSin31°  Now, by fbd of block…

Q: You are pulling on a box (that has a 5.9 kg mass) by using a rope, pulling upward with a force of…

A:

Q: A 11 kg block rests on a 26 degree inclined frictionless surface and is attached by a light string…

A:

Q: 7. A mass m₁ = 5.00 kg is connected by a light string that passes over a pulley of mass m3 = 7.5 kg…

A:

Q: A 2000kg elevator has a downward acceleration of 1.0 m/s/s. (a) What is the tension in its…

A: (a)   M=2000 kg Force due to gravity = Mg=2000*10=20000 N T= tension  a= acceleration   Ma=Mg-T…

Q: An elevator has a mass of 200kg. An average person has of 40 kg. The elevator must accelerate upward…

A:

Q: kids decide to slide boxes down a long slide. the slide is inclined at 20 degrees and has a…

A:

Q: Slanted surfaces with friction: A 4.00-kg block rests on a 30.0° incline as shown in the figure. If…

A:

Q: A crate is being pushed up an incline at a constant velocity. The mass of the crate is 90 kg. The…

A:

Q: abäi 35 A 3.00-kg block starts from rest at the top of a 30.0° incline and slides a distance of 2.00…

A:

Q: A 3.0 kg block moves up on a rough 20° inclined plane with µk = 0.43. A force of 16 N parallel to…

A:

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: