2015-PHYSICS-EN.pdf - Foxit PDF Reader X File Home Comment View Form Protect Foxit eSign Share Help Tell me... Q Find . . . TI & Hand Select SnapShot Clipboard Zoom Page Fit Reflow Rotate Typewriter Highlight Link Bookmark File Image Audio Option View Attachment Annotation & Video Start 2013-PHYSICS-EN.pdf 2015-PHYSICS-EN.pdf X 2015_PHYSICS_SOLUT ... Reduce the file size A physicist develops a device to record the movement of a point on the surface of W the sea as a water wave passes the point. The device consists of a buoy on a long pole fixed to the sea bed vertically underneath the buoy. The buoy is free to slide up and down the pole as the wave passes. A transmitter underneath the buoy emits sound waves which are detected by a receiver fixed to the pole at a certain depth. pole movable buoy and sound transmitter fixed receiver The water wave is described by the equation y(x,t) = 1.40 . sint- 3.00 9.00 where y and x are in metres and t is in seconds. i. Determine the amplitude A, wavelength 2, period T and frequency f of the 3 marks wave ii. Calculate the total distance travelled by the buoy during the time 2 marks 2 iii. Show that the maximum speed of the buoy is Vmax = A 2nf . 3 marks