A moderate wind accelerates a pebble over a horizontal xy plane with a constant acceleration
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a?=(4.0i^+6.0j^)?m/s2. At time t = 0, the velocity is
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(3.0i^)?m/s. What are the (a) magnitude and (b) angle of its velocity when it has been displaced by 12.0 m parallel to the x axis?
Sample Solution
