A block of mass 4.5 kg rests on a horizontal surface where the coefficient of kinetic friction between the two is 0.12. A string attached to the block is pulled horizontally. If the block accelerates at 2.5 m/s², then what is the tension in the string? А. 17.06 N D. 16.54 N В. 19.50 N Е. 18.92 N С. 15.63 N F. 16.09 N |--/

A block of mass 4.5 kg rests on a horizontal surface where the coefficient of kinetic friction between the two is 0.12. A string attached to the block is pulled horizontally. If the block accelerates at 2.5 m/s², then what is the tension in the string? А. 17.06 N D. 16.54 N В. 19.50 N Е. 18.92 N С. 15.63 N F. 16.09 N |--/

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter6: Applications Of Newton's Laws

Section: Chapter Questions

Problem 114AP: A 15-kg sled is pulled across a horizontal, snow-covered surface by a force appiled to a rope at 30...

See similar textbooks

Similar questions

A person doing a chin-up weighs 700 N, exclusive of the arms. During the first 25.0 cm of the lift, each arm exerts an upward force of 355 N on the torso. If the upward movement starts from rest, what is the persons velocity at that point?
(a) If the rocket sled shown in Figure 4.32 starts with only one rocket burning, what is the magnitude of its acceleration? Assume that the mass of the system is 2100 kg, the thrust T is 2.4104 N, and the force of friction opposing the motion is known to be 650 N. (b) Why is the acceleration not one-fourth of what it is with all rockets burning?
Suppose a 60.0-kg gymnast climbs a rope. (a) What is the tension in the rope if he climbs at a constant speed? (b) What is the tension in the rope if he accelerates upward at a rate of 1.50 m/s2?
A 0.400-kg pendulum bob passes through the lowest part of its path at a speed of 3.00 m/s. (a) What is the tension in the pendulum cable at this point if the pendulum is 80.0 cm long? (b) When the pendulum reaches its highest point, what angle does the cable make with the vertical? (c) What is the tension in the pendulum cable when the pendulum reaches its highest point?
s The giant Pacific octopus (Enteroctopus dofleini) has a typical mass of 15 kg and can propel itself bymeans of a water jet when frightened. (a) If it expels water at amass rate of 2.4 kg>s and with a speed of 27 m>s, what thrust canit generate? (b) If the seawater exerts a resistive force of 18 N onthe octopus, what acceleration can it achieve? (c) If the octopusmaintains its jet propulsion for 3.0 s, what maximum velocitycan it attain?
an A clarinetist, setting out for a performance, grabs his 3.390 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air. At one moment, the clarinetist is applying an upward force of 41.57N Use g=9.810(m)/(s^(2)) for the acceleration due to gravity. At this moment, find the vertical component of the case's acceleration a_(y) find a_(y)=________(m)/(s^(2))
In the figure, the net external force on the 24 kg mower is known to be 51 N. f=28N v=1.8 m/s a. If the force of friction opposing the motion of 28N what force in newtons is the person acting on the mower? b. Suppose the mower is moving at 1.8 m/s when the force F is removed. How far will the mower go before stopping in m?
A student tries to push a 30 kg desk across the room. She pushes at a downward angle of 33.2° (measured from the horizontal) with a force of 200 N. As a result, the desk moves with a constant velocity of 1.87 m/s. How much friction is present? Ff = N How much does the desk weigh? Fg = N How much Normal force must be present? FN = N
Two teams of nine members each engage in a tug of war.Each of the first team’s members has an average mass of 68kg and exerts an average force of 1350 N horizontally. Eachof the second team’s members has an average mass of 73 kgand exerts an average force of 1365 N horizontally. (a) Whatis magnitude of the acceleration of the two teams? (b) What isthe tension in the section of rope between the teams?
The net external force on the 24 kg mower is stated to be 51N. a. If the force of friction opposing the motion is 24N, what force F in newtons is the person exerting on the mower? b. Suppose the mower is moving at 1.5 m/s when the force F is removed. How far will the mower go before stopping?
A 0.540-kg bucket rests on a scale. Into this bucket you poursand at the constant rate of 56.0 g>s. If the sand lands in the bucketwith a speed of 3.20 m>s, (a) what is the reading of the scale whenthere is 0.750 kg of sand in the bucket? (b) What is the weight ofthe bucket and the 0.750 kg of sand?
An object of mass 45 kg is drawn upward an inclined plane by a force of 600N. The coefficient of friction between the object and the plane is 0.56. angle of inclination of the plane is 30 degrees to the horizontala). what is the acceleration of the object? EVb). if at the top of the plane, the object slide down freely on the plane under its own weight, with i. what acceleration and APii. velocity does it strike the ground? ANc) what would be the acceleration if the plane was frictionless