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An iceboat sails across the surface of a frozen lake with con- stant acceleration produced by the wind. At a certain instant its velocity is in m/s. Three seconds later the boat is instantaneously at rest. What is its acceleration during this interval?

An iceboat sails across the surface of a frozen lake with con- stant acceleration produced by the wind. At a certain instant its velocity is in m/s. Three seconds later the boat is instantaneously at rest. What is its acceleration during this interval?

Grade:11

1 Answers

Aditi Chauhan
askIITians Faculty 396 Points
6 years ago
Compare vectorC236-1148_1.PNG
236-281_1.PNG
Therefore, the magnitude of initial velocity of boat is 10.5 m/s.
236-1709_1.PNG
Therefore, the magnitude of acceleration experienced by the boat is -3.5 m/s2.
The acceleration vector of the boat is:
236-6_1.PNG

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