1 s are acting on a box of mass 7 kg. The first force has a magnitude of 13 N and is directed along the positive x-direction. The second magnitude of 38 N and is directed at an angle of 70 degrees with respect to the positive x-axis. The third force has a magnitude of 17 ected at an angle of 240 degrees with respect to the positive x-axis. What is the net acceleration of the box in the y-direction? anner

1 s are acting on a box of mass 7 kg. The first force has a magnitude of 13 N and is directed along the positive x-direction. The second magnitude of 38 N and is directed at an angle of 70 degrees with respect to the positive x-axis. The third force has a magnitude of 17 ected at an angle of 240 degrees with respect to the positive x-axis. What is the net acceleration of the box in the y-direction? anner

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter3: Vectors

Section: Chapter Questions

Problem 7P: A force F1 of magnitude 6.00 units acts on an object at the origin in a direction = 30.0 above the...

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A force F1, of magnitude 6.00 units acts on an object at the origin in a direction = 30.0 above the positive x-axis (Fig. P3.8). A second force F2 of magnitude 5.00 units acts on the object in the direction of the positive y-axis. Find graphically the magnitude and direction of the resultant force F1 + F2?. Figure P3.8
A 3.00-kg object is moving in a plane, with its x and y coordinates given by x = 5t2 1 and y = 3t3 + 2, 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 = 2.00 s.
If a single constant force acts on an object that moves on a straight line, the objects velocity is a linear function of time. The equation v = vi + at gives its velocity v as a function of time, where a is its constant acceleration. What if velocity is instead a linear function of position? Assume that as a particular object moves through a resistive medium, its speed decreases as described by the equation v = vi kx, where k is a constant coefficient and x is the position of the object. Find the law describing the total force acting on this object.
A sleigh is being pulled horizontally by a train of horses at a constant speed of 8.05 m/s. The magnitude of the normal force exerted by the snow-covered ground on the sleigh is 6.37 103 N. a. If the coefficient of kinetic friction between the sleigh and the ground is 0.23, what is the magnitude of the kinetic friction force experienced by the sleigh? b. If the only other horizontal force exerted on the sleigh is due to the horses pulling the sleigh, what must be the magnitude of this force?
You managed to pull a heavy crate up a ramp on a truck. The crate has mass 48 kg. You were pulling with 464 N of force along the ramp while the ramp made an angle of theta=29.5 degrees with the horizontal. The coefficient of kinetic friction between the crate and the ramp is 0.45. What is the acceleration of the crate along the ramp? FA
A gust of wind blows an apple from a tree. As the apple falls, the force of gravity on the apple is 9.21 N downward, and the force of the wind on the apple is 1.03 N to the right. What is the magnitude of the net external force on the apple? Answer in units of N.
a box o Cheerios (mass mC = 1.0 kg) and a box of Wheaties (mass mW 3.0 kg) are accelerated across a horizontal surface by a horizontal force applied to the Cheerios box. The magnitude of the frictional force on the Cheerios box is 2.0 N, and the magnitude of the frictional force on the Wheaties box is 4.0 N. If the magnitude of is 12 N, what is the magnitude of the force on the Wheaties box from the Cheerios box?
Two forces act on a 56-kg object. One force has magnitude 65 N directed 59° clockwise from the positive x-axis, and the other has a magnitude 38 N at 36° clockwise from the positive y-axis. To the nearest 0.01 m/s2, what is the magnitude of this object's acceleration?
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