Homework Help: physics

Posted by stoic-rider77 on Wednesday, August 29, 2012 at 9:16pm.

Starting from rest, a boat increases its speed to 4.92 m/s with constant acceleration.

(a) What is the boat's average speed?

(b) If it takes the boat 5.07 s to reach this speed, how far has it traveled?

physics - charrice, Wednesday, August 29, 2012 at 11:41pm
initial velocity = 0 m/s
final velocity = 4.92 m/s
constant acceleration so,
(a) average velocity =
(initial velocity + final velocity)/2

(b) distance = average velocity x time

substitute and calculate

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