Two horizontal forces, P and Q, are acting on a block that is placed on a table. We know that P is directed to the left but the direction of Q is unknown; it could either be directed to the right or to the left. The object moves along the x-axis. Assume there is no friction between the object and the table. Here P = -8.4 N and the mass of the block is 3.5 kg. (a) What is the magnitudeand direction of Q (in N) when the block moves with constant velocity? (Indicate the direction with the sign of your answer.) (b) What is the magnitude and direction of Q (in N) when the acceleration of the block is +5.8 m/s. (Indicate the direction with the sign of your answer.) N (c) Find the magnitude and direction of Q (in N) when the acceleration of the block is -5.8 m/s. (Indicate the direction with the sign of your answer.)

Two horizontal forces, P and Q, are acting on a block that is placed on a table. We know that P is directed to the left but the direction of Q is unknown; it could either be directed to the right or to the left. The object moves along the x-axis. Assume there is no friction between the object and the table. Here P = -8.4 N and the mass of the block is 3.5 kg. (a) What is the magnitudeand direction of Q (in N) when the block moves with constant velocity? (Indicate the direction with the sign of your answer.) (b) What is the magnitude and direction of Q (in N) when the acceleration of the block is +5.8 m/s. (Indicate the direction with the sign of your answer.) N (c) Find the magnitude and direction of Q (in N) when the acceleration of the block is -5.8 m/s. (Indicate the direction with the sign of your answer.)

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter5: Newton's Laws Of Motion

Section: Chapter Questions

Problem 23PQ: The x and y coordinates of a 4.00-kg particle moving in the xy plane under the influence of a net...

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