Answer:
F = 7500 N
Explanation:
given,
mass of the car, m = 1200 Kg
initial speed of the car, v = 25 m/s
final speed of car = 0 m/s
time in which car is at rest, t = 5 s
distance = 50 m
Force = ?
using equation of motion for the calculation of acceleration.
v² = u² + 2 a s
0² = 25² + 2 x a x 50
100 a = -625
a = - 6.25 m/s²
negative sign shows deceleration of the car
now, force calculation
F = m a
F = 1200 x 6.25
F = 7500 N
hence, net force is equal to F = 7500 N
Answer:
the same type because they both formed from rock material.
Explanation:
There are three things needed to be classified as a planet.
Pluto meets 2 of the 3.
The one it does not meet is it doesn’t “clear the neighborhood” which means a planet needs to be gravitationally dominant over all objects around it. Meaning smaller bodies ( asteroids) would either combine with the larger body making it bigger or pushing them away ( out of their orbit) so they do not collide with the larger body.
Answer:
Explanation:
The translational kinetic energy depends on the mass and speed of the body, as follows:
While rotational kinetic energy depends on the moment of inertia and the angular velocity of the body, as follows:
. We know that:
Replacing (1) in (2):
Answer:
Explanation:
This means that the ratio of the speed of the incident beam of light in a vacuum to the speed of light in the glass is 1.5
