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1. The driver of a 1750 kg car, initially traveling at 12.1 m/ s , applies the brakes, bringing the car to rest in?

a ) Work done = KE lost = 1/2 . 1750 . 12.1^2 = 128000 J b) F . d = ∆ KE F = 128000 / 22 = 5823 = 5820 N Direction is correct.

1 Answers · Science & Mathematics · 08/03/2011

2. Physics question about power and speed?

... .. P (Watts) = Work ( J ) / time ( s ) .. (not P = W/ d ) [although we are not going to use...x sin 4.5º .. .. .. F = 1,345.50 N Using the equation .. car power (P...

1 Answers · Science & Mathematics · 01/03/2012

...the object equals the change in energy. W = F* D = (930 - 880) * 28 = 1400 J Since the car started from rest, it had...2 = 1400 ½*1750v^2 = 1400 v^2 = 1.6 v = 1.26 m/ s

1 Answers · Science & Mathematics · 07/09/2010

4. Find the work done if the frictional force, P acting on the block is 100N?

...5sin30) U = 1250 J Using this...up the ramp at a constant velocity... = (Ff) d + mgdsinθ F...1250 F = 1750 / 5 F = 350 N Any force...sin θ + friction) * s ? Is it becuse...

3 Answers · Science & Mathematics · 03/05/2018

5. Physics KINETIC ENERGY AND WORK questions, help please?

...2.31 x 10^12 J This... - a lot but not a silly...km if g = 10 m/ s / s BUT g... force 350 N , is the maximum... a = F/m = 1750 m/ s / s v^2 = 2. a . d = 2 x 1750 x 0...

1 Answers · Science & Mathematics · 08/02/2009

6. multiple choice...........?

... (1), J = 750N. ...' s weight = R. ... be at a distance x from the pivot...) => 0 = [ 1750 * (-4) + 2000 * x]/(.... [3]- ( D ) Density ...

1 Answers · Science & Mathematics · 22/03/2012

...horizontally.) So let' s assume that they meant... is (175 N ) * 10m = 1750 Joules. The...out/Work in = 1750 J / 2000 J ...which would make it c) or d ). Check ...

1 Answers · Science & Mathematics · 28/06/2009

8. women mathematicians.....?

... Morawetz (1923- ) Ruth Moufang (1905-1977) N Evelyn M. Nelson (1

8 Answers · Science & Mathematics · 23/02/2008

9. Can someone give me examples of violence against blacks and women?

...in 1661 and in all the English colonies by 1750 . The blacks were easily distinguished..., the belief that they were an “inferior” race with a “heathen” culture made it easier for ...

6 Answers · Arts & Humanities · 30/11/2007

10. can someone help with my family tree?

.... In Dr. J .B.O. Landrum' s book, "Colonial...1781. There was a battle at Ninety-..., III (b. 1700/1703; d . est. 1733-1787) and SARAH...

1 Answers · Arts & Humanities · 12/05/2010