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Two constant forces act on an object of mass m = 5.90 kg object moving in the xy plane as shown in the figure below. Force F, is 29.0 N at 35.0°, and force F, is 42.5 N at 150°. At time t = 0, the object is at the origin and has velocity (4.40î + 2.35j) m/s 150° 35.0 (a) Express the two forces in unit-vector notation. F, = F, = N (b) Find the total force exerted on the object. (c) Find the object's acceleration. m/s2 Now, consider the instant t = 3.00 s. (d) Find the object's velocity. m/s (e) Find its position. m (f) Find its kinetic energy from Vamv,2. kJ (9) Find its kinetic energy from V2mv,2 + F. AF. (h) What conclusion can you draw by comparing the answers to parts (f) and (g)?

Two constant forces act on an object of mass m = 5.90 kg object moving in the xy plane as shown in the figure below. Force F, is 29.0 N at 35.0°, and force F, is 42.5 N at 150°. At time t = 0, the object is at the origin and has velocity (4.40î + 2.35j) m/s 150° 35.0 (a) Express the two forces in unit-vector notation. F, = F, = N (b) Find the total force exerted on the object. (c) Find the object's acceleration. m/s2 Now, consider the instant t = 3.00 s. (d) Find the object's velocity. m/s (e) Find its position. m (f) Find its kinetic energy from Vamv,2. kJ (9) Find its kinetic energy from V2mv,2 + F. AF. (h) What conclusion can you draw by comparing the answers to parts (f) and (g)?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Two constant forces act on an object of mass m = 5.90 kg object moving in the xy plane as shown in the figure below. Force F, is 29.0 N at 35.0°, and force F, is 42.5 N at 150°. At time t = 0, the object is at the origin and has velocity (4.40î + 2.35j) m/s. 150° 35.0° (a) Express the two forces in unit-vector notation. F. F. N (b) Find the total force exerted on the object. N (c) Find the object's acceleration. m/s2 Now, consider the instantt = 3.00 s. (d) Find the object's velocity. m/s (e) Find its position. m (f) Find its kinetic energy from 2mv?. kJ (g) Find its kinetic energy from V2mv,2 + EF · AF. kJ (h) What conclusion can you draw by comparing the answers to parts (f) and (g)?
Transcribed Image Text:Two constant forces act on an object of mass m = 5.90 kg object moving in the xy plane as shown in the figure below. Force F, is 29.0 N at 35.0°, and force F, is 42.5 N at 150°. At time t = 0, the object is at the origin and has velocity (4.40î + 2.35j) m/s. 150° 35.0° (a) Express the two forces in unit-vector notation. F. F. N (b) Find the total force exerted on the object. N (c) Find the object's acceleration. m/s2 Now, consider the instantt = 3.00 s. (d) Find the object's velocity. m/s (e) Find its position. m (f) Find its kinetic energy from 2mv?. kJ (g) Find its kinetic energy from V2mv,2 + EF · AF. kJ (h) What conclusion can you draw by comparing the answers to parts (f) and (g)?
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