Question

A variable force is exerted on a body of constant mass. The body, initially at rest, moves in a straight line.
F (at 1 sec)=5 N
F(at 2 sec)=10 N
F(at 3 sec)=15 N
F(at 4 sec)=20 N
F(at 5 sec)=25 N
If the velocity of the object is 7.0 ms⁻¹ after 2.0 s, the velocity after 3.4 s will be approximately
A) 20.2 ms⁻¹ B) 17.0 ms⁻¹ C) 11.9 ms⁻¹ D) 28.9 ms⁻¹

Answer 1

Explanation:

b

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Answer 2

Answer:

answer is B).17.0ms^-1