Homework Help: Physics

Posted by Jane on Sunday, October 18, 2009 at 8:41pm.

a) Newton's law of motion states that the acceleration acting on a falling body
(assuming no other forces) is
x" = -g, where x(t) is the height of the object
above the ground, t is time, and g is the gravitational constant. Find a general
expression to describe the height of the object above the ground with respect
to time, t; i.e. find x(t).
(b) Suppose the object is dropped from a height of 100 units (so x'(0) = 0 and
x(0) = 100), how long will it take to hit the ground?

No one has answered this question yet.

Answer this Question

Related Questions

Physics - a) Newton's law of motion states that the acceleration acting on a...
Physics - Only two horizontal forces act on a 9.1 kg body. One force is 5.3 N, ...
AP Physics - While two forces act on it, a particle is to move at the constant ...
physics - Two forces acting on a body in opposite directions,have the resultant ...
Physics - (10 points) 3. Use your data from Part 3 and Newton’s laws to ...
physical - Only two horizontal forces act on a 3.0 kg body that can move over a ...
Newton' law of motion - A resultant force of 50N pulls a body of mass 10kg ...
calc - Air resistance acting on a falling body can be taken into account by the ...
SCIENCE - For my science project i have to choose a sport and list five ...
physics - at what angle must the two forces of 50 newton and 120 newton be ...

For Further Reading

First Name:
School Subject:
Answer: