Goofy 80.00 m/s (d)Goofy – highest average speed Instantaneous Speed P 10, 11, 12 1. (a) 02 m/s F – 8.33 m/s A – 8.00 m/s (b) 0.15 m/s F (c) 7.32 x 10-3s – B 7.69 m/s C (d) 0.175 m C – 6.67 m/s 105.63 m/s (e) 0.4 m D – 6.90 m/s 4 m/s (f) 5.38 x 10-3 s – E 8.00 m/s 1.46 m/s Mixed Speed, Distance, Time Questions P 13. 14 8 m/s 2400 m Distance between two points 8000 s e.g. lamp-posts measured using 3409 s = 57 minutes (56.8) a metre stick 2500 s = 42 minutes (41.7) Time to travel between two a. 24.3 m/s points measured using a b. 28.3 m/s stopwatch, c. No stops between Glasgow = distance/time and Falkirk. Between Glasgow 5.8 m/s and Edinburgh the train must a. 10 km/h stop twice at the station. b. 2.8 m/s Use a light gate. When the Distance between two points vehicle passes through the light e.g. lamp-posts measured using gate the time the beam is a metre stick interrupted for is recorded on Time to travel between two a timer. The length of the points measured using a vehicle is measured using a stopwatch, metre stick. Speed = distance/time Speed = distance/time 17,000 m 0.4 m/s
Goofy 80.00 m/s (d)Goofy – highest average speed Instantaneous Speed P 10, 11, 12 1. (a) 02 m/s (b) 0.15 m/s (c) 7.32 x 10-3s (d) 0.175 m (e) 0.4 m (f) 5.38 x 10-3 s 1.46 m/s A – 8.00 m/s B – 7.69 m/s C – 6.67 m/s D – 6.90 m/s E – 8.00 m/s F – 8.33 m/s F C 105.63 m/s 4 m/s Mixed Speed, Distance, Time Questions P 13. 14 8 m/s Distance between two points e.g. lamp-posts measured using a metre stick Time to travel between two points measured using a stopwatch, = distance/time 5.8 m/s a. 10 km/h b. 2.8 m/s Distance between two points e.g. lamp-posts measured using a metre stick Time to travel between two points measured using a stopwatch, Speed = distance/time 17,000 m 2400 m 8000 s 3409 s = 57 minutes (56.8) 2500 s = 42 minutes (41.7) a. 24.3 m/s b. 28.3 m/s c. No stops between Glasgow and Falkirk. Between Glasgow and Edinburgh the train must stop twice at the station. Use a light gate. When the vehicle passes through the light gate the time the beam is interrupted for is recorded on a timer. The length of the vehicle is measured using a metre stick. Speed = distance/time 0.4 m/s
DS-N45-Question-book-1-Dynamics.docx