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l. A motor cyclist travelling at 20 m/s passes through a speed detector' on a motorway in a time of 0-15 seconds. How r does the motor cyclist travel in this time? What is his speed in miles/Twat 5' 2. A runner travels at a speed of 8 ng/s. A. How long will it take to run one lap ofa 0.400 km track? B. How much time in minutes will runner finish 10 laps? 3. A man walks 7hr! in 2 hours West and 2 km in 1 hour back toward the East. A. What is the man's average velocity) B. What is the man's average speed? 4.Duting a rugby match, a spectator at A walks to C, the opposite corner of the ground, by walking from A to B to C as shown: in the diagram. Rugby pitch viewed from above. Point A is at much-west comer, point B is at north-west corner and point C is at north-east corner. Distance Earn A to B ls .70 m, and Eon: B to C is 160 tn. A. 1'What is the nal displacement of the spectator? Show both analytical and graphical solution B. If the spectator takes to complete the walk, what is the average speed? 5. At liftoff, a space rocket has an engine force of 45,000 N . me weight of the rocket is 38 000 N The resultant force on the rocket is