A 4.0 kg mass has a velocity of 10 m/s to the EAST. The 4.0 kg mass undergoes an

Question

A 4.0 kg mass has a velocity of 10 m/s to the EAST. The 4.0 kg mass undergoes an acceleration of 4.0 m/s^2 to the WEST for 3.0 seconds. What is the velocity of the 4.0 kg mass at the end of the 3.0 sec interval? A) 22m/s to the west B) 2.0 m/s to the west C) 0.0 m/s D) 2.0 m/s to the east E) 22 m/s to the east A 4.0 kg mass has a velocity of 10 m/s to the EAST. The 4.0 kg mass undergoes an acceleration of 4.0 m/s^2 to the WEST for 3.0 seconds. What is the velocity of the 4.0 kg mass at the end of the 3.0 sec interval? A) 22m/s to the west B) 2.0 m/s to the west C) 0.0 m/s D) 2.0 m/s to the east E) 22 m/s to the east A) 22m/s to the west B) 2.0 m/s to the west C) 0.0 m/s D) 2.0 m/s to the east E) 22 m/s to the east

Explanation / Answer

v = u - at

v = 10 - 4*3

v = 10 - 12

v = -2 m/s

Velocity = 2.0 m/s to the west

the velocity of the 4.0 kg mass at the end of the 3.0 sec interval is 2 m/s to the west.

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