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Questions and answers by
Lee Kite
Questions (10)
1.A race car has a mass of 707 kg. It starts from rest and travels 42.0 m in 3.0 s. The car is uniformly accelerated during the
1 answer
592 views
2.A 4430 kg helicopter accelerates upward at 2.2 m/s2. What lift force is exerted by the air on the propellers?
1 answer
649 views
2.A 4430 kg helicopter accelerates upward at 2.2 m/s2. What lift force is exerted by the air on the propellers?
1 answer
424 views
1.A race car has a mass of 707 kg. It starts from rest and travels 42.0 m in 3.0 s. The car is uniformly accelerated during the
3 answers
1,077 views
A 69 kg diver jumps off a 10.4 m tower.
(a) Find the diver's velocity when he hits the water. m/s (b) The diver comes to a stop
2 answers
883 views
An 865 kg (1912 lb) dragster, starting from rest, attains a speed of 26.7 m/s (59.8 mph) in 0.59 s.
(a) Find the average
3 answers
1,336 views
A car is traveling 15 m/s when the driver sees a child standing on the road. He takes 0.8 s to react, then steps on the brakes
1 answer
654 views
What is the date, location, and outcome/significance of the battles of Trenton, Saratoga, Yorktown, Lexington and Concord.
1 answer
727 views
During the time interval of 15 to 20 secs. The graph goes from 10 m/s to 4 m/s , what is the average acceleration of that time
1 answer
373 views
A bike rider accelerates constantly to a velocity of 8.0 m/s during 4.2 s. The bike's displacement during the acceleration was
3 answers
1,662 views
Answers (2)
Do I use F=ma so then m=707 and a=42/3 which is 14. So m=707 and a=14 and I multiply and it's 9898 N?
A 69 kg diver jumps off a 10.4 m tower. (a) Find the diver's velocity when he hits the water. m/s (b) The diver comes to a stop 2.0 m below the surface. Find the net force exerted by the water. N
