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Laws of motion
On an object of mass 1 kg moving along x-axis with constant speed 8 m/s a constant force 2 N is applied in positive y-direction. Find its speed after 4 seconds
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v ( x - axis) - no change since there is no external force applied
v (y - axis) Initial v = 0 m/s t = 4 sec a = Fy/m = 2m/s^2 Vy = 0 + 2 x 4 = 8 m/s V = (Vx^2 + Vy^2)^1/2 = 8.2^1/2 |
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