A 2.0-kg object has a velocity of 4.0 m/s at t = 0. A constant resultant force of (2.0 + 4.0 ) N then acts on the object for 3.0 s. What is the magnitude of the object's velocity at the end of the 3.0-s interval?
A) 9.2 m/s
B) 6.3 m/s
C) 8.2 m/s
D) 7.2 m/s
E) 7.7 m/s

Question

A 2.0-kg object has a velocity of 4.0  m/s at t = 0. A constant resultant force of (2.0  + 4.0  ) N then acts on the object for 3.0 s. What is the magnitude of the object's velocity at the end of the 3.0-s interval?
A) 9.2 m/s 
B) 6.3 m/s 
C) 8.2 m/s 
D) 7.2 m/s 
E) 7.7 m/s

Quizplus · Accepted Answer

The Answer of A 2.0-kg object has a velocity of 4.0  m/s at t = 0. A constant resultant force of (2.0  + 4.0  ) N then acts on the object for 3.0 s. What is the magnitude of the object's velocity at the end of the 3.0-s interval?
A) 9.2 m/s 
B) 6.3 m/s 
C) 8.2 m/s 
D) 7.2 m/s 
E) 7.7 m/s

A 20-Kg Object Has a Velocity of 4