# Yahoo Web Search

1. ### If a ball thrown with a velocity11.2 km/ sec .What will happen?

11.2 km/ sec is the "escape velocity" from the surface of the earth. When...the surface, where there's no air, and THEN throw it at 11.2 km/ sec , it would fly away from the earth forever. BUT there's a catch...

8 Answers · Science & Mathematics · 23/06/2007

2. ### Trigonometry Help! How do I simplify sec ^2/(tan+cot)?

A) sec ^2/(tan+cot) Solution: (1/cos^2) / ((sin/cos)+(cos/sin)) (1/cos^2...1+sin) / {cos(1+sin)} 2/cos 2sec ANSWER C) (tan^2/ (1+ sec )) cos* sec . Since cos* sec =1 (tan^2)/ (1+ sec ) ( sec ^2-1)/ (1+ sec ...

1 Answers · Science & Mathematics · 10/11/2011

3. ### convert m/s to rads/ sec ?

You mean radians/ sec ? It depends on how far you are from the center that you ... if v is measured in (same distance units as r) per sec . If the motion is not circular, then the speed is (v/r)*sin θ...

2 Answers · Science & Mathematics · 30/07/2010

4. ### the unit defining a value... such as a car goes 5 km/ sec ... why is km on top?

Km/ sec , Amps/meter, meter / second, meter/ second^2 kg / m^3, N... all these units we have a symbol [/]. [/] means per. Km/ sec means kilometer per second. Amps/meter means ampere...

2 Answers · Science & Mathematics · 25/11/2009

5. ### How much time does it take a bullet to go 50ft at 500ft/ sec ?

correct s=d/t since s is 500 ft/ sec in this case, and d is 50 ft, we get 500 ft/ sec = 50 ft/ t lets...1 = 50 so 500 t feet/ sec = 60 ft divide both sides by 500 ft/ sec and get 500 t feet/ sec / (500 ft/ sec ) =50 ft / (500 ft/ sec ) 500 feet...

3 Answers · Science & Mathematics · 07/05/2011

6. ### why is sec (-3pi) equal to -1 and not 0?

sec (-3π) = 1/cos(-3π) --> that you should just know. sec (x) = 1/cos(x) cos(-3π) = -1 1/-1 = -1 The negative really doesn't matter...

2 Answers · Science & Mathematics · 04/03/2013

7. ### From what height must a ball be tossed for it to strike the ground with a velocity of -136 ft/ sec ?

Assume acceleration due to gravity is -32 ft/ sec ^2 v^2 = u^2 + 2as but for simplicity I am... zero). We know the initial velocity is 96 ft/ sec . Again for ease of maths we're going...

3 Answers · Science & Mathematics · 27/07/2012

8. ### Suppose a ball is thrown upward from a height of 5 ft with an initial velocity of 30 ft/ sec .?

...= -16t^2+vt+h With v equalling the initial velocity (30 ft/ sec ) h equalling the initial height (5 feet) t equalling...

3 Answers · Science & Mathematics · 27/01/2008

9. ### A cannon is launched. It reaches a max height of 11, an initial velocity of 0 and lands at 1.3 secs .?

...of the answers are easy, for example the time to range is 1.3 sec , they give you that one. The time for max height would be one half of that or...

3 Answers · Science & Mathematics · 19/01/2012

10. ### a body in uniform acceleration covers 75m in6th sec 115m in 11th sec . Find displacement in 16th sec ?

from the 6th sec to 11th sec is 5 seconds. Find acceleration Xf...230 = 25a a = 9.2 m/s^2 assume the question ask for the displacement from 6th sec to 16th sec so from 6th sec to 16th sec is 10 ...

3 Answers · Science & Mathematics · 13/08/2007