An element is a pure substance made of atoms that are all of the same type.
Answer:
The heavier one will have twice the kinetic energy of the lighter one.
Explanation:
For the objects of mass m and 2 m , kinetic energy is
0.5 m v² and 0.5 (2 m) v² respectively. So kinetic energy of the mass 2 m is Twice that of the object of mass m, since their final velocities are equal.
When an object is dropped from the top of a building ( or from some height), its acceleration is equal to the acceleration due to gravity and has a zero initial velocity. On reaching the ground, the final velocity attained by the object depends only on the gravity and the height of fall, as given by the equation v = √2 g h.
So final velocity is independent of the mass of the object. But kinetic energy is 0.5 m v² , which shows that it depends on the mass of the object and square of the velocity.
Answer:
velocity of the object
Explanation:
For an object moving at a constant acceleration, we would expect to see a position graph with a curved shape and a velocity graph with a straight shape.
Recall that the magnitude of the acceleration of a particle moving with speed in a circular path around a point at a distance away from the particle is given by
So, the satellite has velocity
pointing in the direction tangent to the circular path.
Recall that average velocity is equal to change in position over a given time interval,
so that the <em>x</em>-component of is
and its <em>y</em>-component is
Solve for and , which are the <em>x</em>- and <em>y</em>-components of the copter's position vector after <em>t</em> = 1.60 s.
Note that I'm reading the given details as
so if any of these are incorrect, you should make the appropriate adjustments to the work above.