One person goes 10 m east and changes direction 5 m to the north-east
The distance is gone. What is the mate movement of that person?
Answers
Explanation:
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Abhi178★ Brainly Teacher ★
Let car A moves in East and car B moves in North ,
Let car A covered distance x km in East direction
and Car B covered distance (2x + 16) km in North direction .
because north and east are perpendicular
so, at that time right angle trainlge form and hypotenuse is distance between car at that time
distance between the cars = √(x)² + (2x +16)²
again ,
√{ x ² + (2x + 16)² } = 3x -16
take square both sides
x² + 4x² + 64x +256 = 9x² - 96x +256
4x² -96x -64x = 0
x = 40 km , 0 km
but x ≠ 0 km
so, x = 40 Km
hence distance travelled by car A = 40 km
and distance travelled by car B = 2{40} +16 = 96 km
so, distance between car = √(40² +96)² or 3(40) -16 = 120 -16 = 104 km
hence distance between car at that time = 104 km
One person goes 10 m east and changes direction 5 m to the north-east
The distance is gone. What is the mate movement of that person?