Determine average speed and average velocity of the particle if it moves on x-axis as follows: Starts from x=2 m and reaches x=4 m in 4 seconds. Then moves to x=6 m in next 8 seconds.
Answers
Answered by
2
Explanation:
I assume this refers to the position of the particle at t=0, since it travels along the x-axis only. We can substitute 0 into the given equation for position and see what we get for x.
x(t)=(4t−t2−4)
⇒x(0)=(4(0)−(0)2−4)
⇒x=−4
Therefore, the initial position of the particle is −4m, and |−4|=4, so answer A is correct.
Similar questions