Wednesday, March 18, 2009
Physics
V = ∆d/∆t
∆t = ∆d/V
∆d = V∆t
14. YOU AND YOUR FAMILY ARE DRIVING TO YOUR GRANDPARENTS' HOME, WHICH IS 95 KM AWAY. IF YOU DRIVE AT AN AVERAGE SPEED OF 85 KM/H, HOW LONG WILL IT TAKE YOU TO GET THERE?
T = 4023 s
17. ON SOME HIGHWAYS, EXIT SIGNS ARE NUMBERED ACCORDING TO THE NUMBER OF KILOMETRES THE EXIT IS FROM THE PLACE WHERE THE HIGHWAY ORIGINATED. IF YOU ARE DRIVING SOUTH AND PASS EXIT 35 AT 2:15 PM, AND THEN YOU PASS EXIT 116 AT 3:09 PM, WHAT IS YOUR VELOCITY?
→
V = 25m/s [S]
19. IF A MAGLEV (MAGNETIC LEVITATION) TRAIN RAN BETWEEN EDMONTON AND CALGARY, A DISTANCE OF 295 KM, IT COULD MAKE THE TRIP IN ABOUT 0.75 H (THREE QUARTERS OF AN HOUR). WHAT WOULD BE THE SPEED OF THE MAGLEV TRAIN?
V = 109.26 m/s
(1.1x10^2)
20. A CAR AND DRIVER LEAVE WHITECOURT AT NOON. THE CAR PASSES THROUGH VALLEYVIEW AT 2:15 PM. AND REACHES GRANDE PRAIRIE AT 3:45 PM. INCLUDING TIME TO STOP FOR A MEAL. VALLEYVIEW IS 168 KM FROM WHITECOURT AND GRANDE PRAIRIE IS 279 KM FROM WHITECOURT. WHAT WAS THE AVERAGE SPEED OF THE CAR BETWEEN VALLEYVIEW AND GRANDE PRAIRIE?
V = 20.6 m/s
21. SOME TEENAGERS ARE TRAINING THEIR DOG TO CARRY MESSAGES BETWEEN THE STORE WHERE ONE TEEN WORKS AND THE RESTAURANT WHERE THE OTHER WORKS. THEY WANT TO FIND OUT HOW LONG IT WILL TAKE THE DOG TO MAKE THE TRIP. THEY MEASURE THE DISPLACEMENT BETWEEN THE STORE AND THE RESTAURANT AND FIND THAT IT IS 1.2 km [W]. WHILE TRAINING THE DOG, THEY TIME IT WITHA STOPWATCH AND FIND THE TIME TO BE 14 MIN. WHAT WAS THE DOG'S VELOCITY?
V = 1.4 m/s [W]
22. IF YOU WALK TO SCHOOL AT A SPEED OF 1.2 M/S AND IT TAKES YOU 18 MIN TO REACH THE SCHOOL, WHAT IS THE DISTANCE FROM YOUR HOME TO THE SCHOOL?
d = 1296 m
∆t = ∆d/V
∆d = V∆t
14. YOU AND YOUR FAMILY ARE DRIVING TO YOUR GRANDPARENTS' HOME, WHICH IS 95 KM AWAY. IF YOU DRIVE AT AN AVERAGE SPEED OF 85 KM/H, HOW LONG WILL IT TAKE YOU TO GET THERE?
T = 4023 s
17. ON SOME HIGHWAYS, EXIT SIGNS ARE NUMBERED ACCORDING TO THE NUMBER OF KILOMETRES THE EXIT IS FROM THE PLACE WHERE THE HIGHWAY ORIGINATED. IF YOU ARE DRIVING SOUTH AND PASS EXIT 35 AT 2:15 PM, AND THEN YOU PASS EXIT 116 AT 3:09 PM, WHAT IS YOUR VELOCITY?
→
V = 25m/s [S]
19. IF A MAGLEV (MAGNETIC LEVITATION) TRAIN RAN BETWEEN EDMONTON AND CALGARY, A DISTANCE OF 295 KM, IT COULD MAKE THE TRIP IN ABOUT 0.75 H (THREE QUARTERS OF AN HOUR). WHAT WOULD BE THE SPEED OF THE MAGLEV TRAIN?
V = 109.26 m/s
(1.1x10^2)
20. A CAR AND DRIVER LEAVE WHITECOURT AT NOON. THE CAR PASSES THROUGH VALLEYVIEW AT 2:15 PM. AND REACHES GRANDE PRAIRIE AT 3:45 PM. INCLUDING TIME TO STOP FOR A MEAL. VALLEYVIEW IS 168 KM FROM WHITECOURT AND GRANDE PRAIRIE IS 279 KM FROM WHITECOURT. WHAT WAS THE AVERAGE SPEED OF THE CAR BETWEEN VALLEYVIEW AND GRANDE PRAIRIE?
V = 20.6 m/s
21. SOME TEENAGERS ARE TRAINING THEIR DOG TO CARRY MESSAGES BETWEEN THE STORE WHERE ONE TEEN WORKS AND THE RESTAURANT WHERE THE OTHER WORKS. THEY WANT TO FIND OUT HOW LONG IT WILL TAKE THE DOG TO MAKE THE TRIP. THEY MEASURE THE DISPLACEMENT BETWEEN THE STORE AND THE RESTAURANT AND FIND THAT IT IS 1.2 km [W]. WHILE TRAINING THE DOG, THEY TIME IT WITHA STOPWATCH AND FIND THE TIME TO BE 14 MIN. WHAT WAS THE DOG'S VELOCITY?
V = 1.4 m/s [W]
22. IF YOU WALK TO SCHOOL AT A SPEED OF 1.2 M/S AND IT TAKES YOU 18 MIN TO REACH THE SCHOOL, WHAT IS THE DISTANCE FROM YOUR HOME TO THE SCHOOL?
d = 1296 m
Labels: physics
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