Answer:
24.5 N
Explanation:
Draw a free body diagram of the picture. There are four forces:
Weight force mg pulling down.
Friction force Nμ pushing up.
Normal force N pushing left.
Applied force F pushing right.
Sum of the forces in the y direction:
∑F = ma
Nμ − mg = 0
N = mg / μ
Sum of the forces in the x direction:
∑F = ma
F − N = 0
F = N
Substitute and solve:
F = mg / μ
F = (1.5 kg) (9.8 m/s²) / (0.6)
F = 24.5 N
Answer:
Horizontal component of force =
Vertical component of force=
Explanation:
We are given that
Force=80 N

We have to find the horizontal and vertical components of the force.
We know that
Horizontal component of force=
Vertical component of force=
Using the formula
Horizontal component of force =
Horizontal component of force =
Vertical component of force=
Vertical component of force=
Answer:
Total time= 2.56 s
Explanation:
Given that

So distance = 386242560 m
Velocity of light

We know that
Distance = velocity x time
Now by putting then values

t=1.28 s
So the total time = 2 x 1.28
total time= 2.56 s
Answer:
the branch of mechanics concerned with the motion of objects without reference to the forces which cause the motion is called kinematics.