A child operating a radio-controlled model car on a dockaccidentally steers it o

Question

A child operating a radio-controlled model car on a dockaccidentally steers it off the edge. The car's displacement 1.1 safter leaving the dock has a magnitude of 7.0 m. What is the car'sspeed at the instant it drives off the edge of the dock? A child operating a radio-controlled model car on a dockaccidentally steers it off the edge. The car's displacement 1.1 safter leaving the dock has a magnitude of 7.0 m. What is the car'sspeed at the instant it drives off the edge of the dock? A child operating a radio-controlled model car on a dockaccidentally steers it off the edge. The car's displacement 1.1 safter leaving the dock has a magnitude of 7.0 m. What is the car'sspeed at the instant it drives off the edge of the dock?

Explanation / Answer

x = vt          y= (1/2) g t2   and     x2 + y2 = 72 . Now we can solve for v... .     x = v *1.1        y = (1/2) * 9.8 *1.12 =  5.929      .     x2  + 5.9292   = 49 .    x = 3.721 .      3.721 = v * 1.1 . v =   3.383 m/s   is the speed as it leavesthe dock . Now we can solve for v... .     x = v *1.1        y = (1/2) * 9.8 *1.12 =  5.929      .     x2  + 5.9292   = 49 .    x = 3.721 .      3.721 = v * 1.1 . v =   3.383 m/s   is the speed as it leavesthe dock

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