6. (A) A convict escapes through a tunnel and runs at 7.2 km/h. 15 minutes later, the tunnel is discovered and the guards give chase at 10.8 km/h. (4 marks)
(hint: you may need to do a substitution to solve this but there is also a much easier way
hint hint, nudge nudge, wink wink)
(a) How long does it take the guards to catch him, in seconds?
(b) How far is he from prison when he is caught?

An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0° above the horizontal. it then moves 137 ft at an angle of 48.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

Un jugador de beisbol batea un foul recto en el aire.la pelota deja el bate con una rapidez de 120 km/h. en ausencia de resistencia del aire. ? cual sera la rapidez de la pelota cuando la atrape el catcher

The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse