Answer:
6.77 m/s
Explanation:
Acceleration = Force/mass;
The block is accelerated by 13/6.4 m/s^2 for 2.1s from an initial velocity of 2.5m/s.
Applying the equation of motion:
Vf=Vi + at
Where Vf is the final velocity, Vi is the initial velocity, a is the acceleration and t is the time for which the object accelerates.
<h3>Vf= 2.5 + ((13/6.4)*2.1);</h3>
Answers is F=7.84 N
Friction force resists the effect of horizontal force and trying to approch to a limiting force.
we have formula for limiting friction force between block and floor
F=Ц N
where N=mg
putting values we get answer.
Answer:
30.3 meters, 172 degrees.
Explanation:
Answer:
A. Ar, Si, Mg, Na
Explanation:
ar is argon which is an inert gas. its in group 18. whole column is filled with inert gases.
na is sodium. very reactive. its in group 1. whole column is filled with very reactive elements
Answer:
The distance from the building is 11.41 m.
Explanation:
Given that,
Speed = 30.0 m/s
Angle = 45.0°
Distance = 10.0 m
We need to calculate the vertical component
Using formula of vertical component
We need to calculate the time
Using equation of motion
Put the value into the formula
On neglecting of higher value of t
Then use the horizontal component
We need to calculate the distance
Put the value into the formula
Hence, The distance from the building is 11.41 m.