Aboat travels in a straight path that is 25° west of north. which describes the values of the west and north components of
the boat's displacement?
both components are positive numbers.?
both components are negative numbers.?
the west component is a negative number, and the north component is a positive number.?
the west component is a positive number, and the north component is a negative number.?
Answers: 1
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Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".
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Aboat travels in a straight path that is 25° west of north. which describes the values of the west a...
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