5 and 7

Use the information below to answer question 5. The jet shown to the right is the Avro Arrow. The Arrow was a twin engine, supersonic interceptor developed in the late 1950's by the Avro Aircraft Company of Canada. The Diefenbaker government cancelled the project in 1959. As a RL 201 result Canada lost one of the most sophisticated fighter jets of the day, and many thousands of engineers and scientists had to leave Canada to find work. The 28 100 kg Arrow could accelerate from rest to 66 m/s in a time of 2.0 s. Determine the 5. thrust (i.e., magnitude of the force) produced by the Arrow's engines to cause this acceleration. (9.3 x 105 N] 6. Canada's Motor Torpedo Boats (MTB) patrolled the English Channel during World War II. A MTB could start from rest and accelerate to 50 m/s in a time of 8.0 s over a distance of 200 m. Determine the magnitude of the net force if the boat's mass is 5.5 x 10* kg. [3.4 x 105 N] V: = 0 Fnet = ma Up : 50 m/s = M / VF - vi -= 8. 6 (50 - 0 ) F= ? = 5:5 x 10 4kg ( 8.0 m= 5.5 . 10- kg - 3.4 x 105 North. 7. A 1000 kg car is travelling at 27.0 m/s. Determine the force required to stop it in 70.0 m. [-5.21 kN]