Answer:
v=69.32 m/s
Explanation:
you have to transfer the distance from mile to meters (from miles to meters multiply by 1609)
so d=204387 m
you have to transfer the time from hour to second (from hour to second multiply by 3600)
so t=2948.4 s
the rule says v=d/t=204387/2948.4= 69.32 m/s
Answer:
The required acceleration is
m/s²
Explanation:
Given
To determine
Acceleration a = ?
We know that acceleration is produced when a force is applied to a body.
The acceleration can be determined using the formula

where
now substituting F = 250 , and m = 221 in the formula


switch the equation

Divide both sides by 221

simplify

m/s²
Therefore, the required acceleration is
m/s²
Standard sea level pressure by definition equals 760 mm (29.92 inches) of mercury
Explanation: As the angle is increased the acceleration of the object is increased as the angle increases the component of the force parallel to the incline increases and the component of forced perpendicular to the inclined decreases it is the parallel component of the weight vector that causes the acceleration.
Answer:
power will three times decrease (one-third)
Explanation:
P = W / t
thus when work is constant, power is inversely proportional to time
so, when time is tripled, power is decreased to one-third