A particle travels with speed 50 m/s from point (3,-7) in the direction 7i-24j find the position vector after 3 secs
jasmine3552:
hi
plzzz help me in solving this
Answers
Answered by
8
(7^2 + 24^2)^(1/2) = 25
50/25 = 2
3*2 = 6
6*7 = 42
6*24 = 144
3 + 42 = 45
- 7 + 144 = 137
(i,j) = (45,137)
50/25 = 2
3*2 = 6
6*7 = 42
6*24 = 144
3 + 42 = 45
- 7 + 144 = 137
(i,j) = (45,137)
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how u got 50/25.....?
i dont understand the solution
plzzzz can u explain me....?
the vector is 7i -24j
i calculated its magnitude
then
wait,i will write everything
Answered by
6
Answer:39i^ -137j^
Explanation:
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