Answer:
It does not indicate the car's direction. Since velocity is both magnitude and direction, the speedometer measures speed but does NOT measure velocity
Answer:
Atomsphere
Explanation:
Without our atmosphere, there would be no life on earth. Scientists divided the atmosphere into four layers according to temperature: troposphere, stratosphere, mesosphere, and thermosphere.
Answer:
A gravitational force exerted by an object on another is a force.
Explanation:
hope it helps
Answer:
<h2>a)
The base baseball was in air for 0.64 seconds.</h2><h2>
b) Speed of throwing is 32.89 m/s</h2>
Explanation:
a)Consider the vertical motion of baseball
We have equation of motion s = ut + 0.5 at²
Initial velocity, u = 0 m/s
Acceleration, a = 9.81 m/s²
Time, t = ?
Displacement, s = 2 m
Substituting
s = ut + 0.5 at²
2 = 0 x t + 0.5 x 9.81 x t²
t = 0.64 seconds
The base baseball was in air for 0.64 seconds.
b)Consider the horizontal motion of baseball
We have equation of motion s = ut + 0.5 at²
Initial velocity, u = ?
Acceleration, a = 0 m/s²
Time, t = 0.64 s
Displacement, s= 21 m
Substituting
s = ut + 0.5 at²
21 = u x 0.64 + 0.5 x 0 x 0.64²
u = 32.89 m/s
Speed of throwing is 32.89 m/s
