A bus is moving at 24 m/a (t=0) slows at a rate of 4.0 m/s each second; how long does it take the bus to stop? and then how far does it travel while braking?
I would at least like to know the formulas.
2 months ago
2 months ago
The formula for the time is Time = (speed) / (acceleration) .
If it slows 4 m/s every second, it takes (24/4) = 6 seconds to slow from 24 to zero. ======================================== If the speed at the beginning or end of the acceleration is zero, then the formula for distance during acceleration is D = 1/2 (acceleration) (time)² .
if an organism can not reproduce,is it still considered living?why?
The ability to reproduce is essential for a species, but not for an individual. There are some people that can't reproduce, but they're still alive!
If objects travelling at near the speed of light gain mass because their energy of their motion is being converted into mass, the does a photon gain mass?
A photon travels only at the speed of light, and has no mass at any lower speed.
If that makes sense to you, then there is a problem. But that's the way it is.
A people-moving conveyor-belt moves a 600-newton person a distance of 100 meters through the airport.
a. How much work was done?
b. The same 600-newton person lifts his 100-newton carry-on bag upward a distance of 1 meter. They
travel another 10 meters by riding on the “people mover.” How much work was done in this situation?
In a), no work is done to move horizontally 'across" gravity. In b), he does (m) (g) (h) = (100)(9.8)(1) = 980 joules of work to lift the bag, and then no more work is done by the belt to move both of them horizontally.
What is the displacement after 6 seconds when a car is moving at 12m/s and coasts up a hill with a uniform aacceleration of -1.6 m/s^2
The kinematic formula using displacement, time, initial velocity, and acceleration: x = v t+.5 a t^2 x= (12m/s)(6s) + .5(-1.6m/s^2)(6s)^2 x= 72m - 28.8m x = 43.2 m
How do you solve sleep deprivation? And i am not trolling!
The ONLY way to reverse the effects of sleep deprivation is with extra sleep, without drugs. I'm not sure what trolling means.
If a dune Buggy is traveling for 20 seconds at a speed of 8.5m/s how do I calculate the unknown quantities
Right now I can think of about 50 unknown quantities, and the one you need to find is the most unknown of all of them, because you haven't even sait WHAT quantity you need to find.
What are two things that the amount of gravitational force between two object depends on
1). the product of the two masses being gravitationally attracted to each other
2). the distance between their centers of mass
And that's IT. The gravitational force between them depends on only those two things, nothing else.
The equation behind this question is:
g = (G*m*M) / (r^2)
g is the gravitational force G is the Universal Gravitational Constant M is the mass of one object and m is the mass of the other constant r is the distance between the two objects
what is the mechanical energy of a falling apple with a kinetic of 5.2 joules and a potential energy of 3.5 joules
Mechanical energy in this problem is the sum of the kinetic energy and the potential energy: 5.2+3.5= 8.7 Joules
How far will a free falling object have fallen from a position of rest when it's instantaneous speed is 10m/s?
Use kinematic equation:
vf² = vo² + 2g(xf - xo)
vf = final velocity = 10 m/s vo = initial velocity = 0 m/s (i.e. at rest) g = 9.81 m/s² xf - xo = distance traveled = d
*rearrange equation to solve for d
(vf² - vo²)/(2g) = d
d = ((10 m/s)² - (0 m/s)²)/(2*9.81 m/s²)
d = (100 m²/s²)/(2*9.81 m/s²)
d = 5.097 m
Gravity and friction are two kinds of a.inertia b.forces c.masses d.gravity