(3) A force F moves the 2.0 kg block on a horizontal plane. Fig. 3 shows the velocity (v) of the block as a function of time (t). The normal force N of floor on m acting in the first 2 seconds is A) 8N B) 20 C) 8 N D) 27 N (4) A 3.0-kg object is moving in a plane, with its x and y coordinates given by x = 5t² - 1 and y = 3t 3+2, where x and y are in meters and is in seconds. Find the magnitude of the net force acting on this object at t = 2.0 s. A) 108 N B) 138 N C) 30 N D) 112 N F 60° m = 2 kg 4 v, (m/s) 2 3 Fig.3 4 t(s)
(3) A force F moves the 2.0 kg block on a horizontal plane. Fig. 3 shows the velocity (v) of the block as a function of time (t). The normal force N of floor on m acting in the first 2 seconds is A) 8N B) 20 C) 8 N D) 27 N (4) A 3.0-kg object is moving in a plane, with its x and y coordinates given by x = 5t² - 1 and y = 3t 3+2, where x and y are in meters and is in seconds. Find the magnitude of the net force acting on this object at t = 2.0 s. A) 108 N B) 138 N C) 30 N D) 112 N F 60° m = 2 kg 4 v, (m/s) 2 3 Fig.3 4 t(s)
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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