The diagram shows an electric toy boat of mass 2.5 kg moving horizontally in still water with a
constant velocity of 1.8 m/s. The water provides a resistive force of 0.85 N on the boat.
toy boat
water
propeller
1.Forward force?
2.K.E
3.the propeller is turned off, determine the distance travelled by the boat before it comes to rest, assuming the resistive force on the boat remains constant through the motion.
4.the forward force provided by the propeller increases to a value of 1.5N. determine the velocity on the boat remains constant throughout the motion.
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