Answer:
- 1.67 m/s
Explanation:
mass of first ball, m = 10 kg
mass of second ball, M = 20 kg
initial velocity of first ball, u = 5 m/s
initial velocity of second ball, U = - 5 m/s (direction is opposite to the first ball)
Let the final velocity of the combined mass is V.
Use the principle of conservation of linear momentum
Momentum before collision = Momentum after collision
m u + M U = ( m + M) V
10 x 5 + 20 x (-5) = (10 + 20) x V
50 - 100 = 30 V
- 50 = 30 V
V = - 1.67 m/s
Thus, the combined mass moves in the negative x axis direction with the velocity of 1.67 m/s.
Answer:
G. 2s
Explanation:
The period of a pendulum is measured in time. Out of the four options, only one of them is measured in time so it must be G.
A period of a pendulum is how long it takes to swing back to it's original position, and this time (2 seconds) is given in the question as well
The pairs of triangles that can be proven congruent by the hl theorem is the right angled triangle.
<h3>What is mearnt be the HL theorm?</h3>
The HL theorem is also known as the Hypothenus Leg theorem, it states that "the hypotenuse and leg of one right triangle are congruent to the hypotenuse and leg of another right triangle, then the two triangles are congruent."
Learn more about the postulates of the HL theorem here:
brainly.com/question/25922842
This is called super-saturation
hope this helps :)))))))
Answer: 3,383.5 kg
Explanation:
from the question we were given the following
tension (T) = 4.5 x 10^4 N
maximum acceleration (a) = 3.5 m/s^2
acceleration due to gravity (g) = 9.8 m/s^2 ( it's a constant value )
mass of the car and its contents (m) = ?
we can get the mass of the car and it's contents from the formula for tension which is T = ma + mg
T = m (a + g)
therefore m = T / (a+g)
m = (4.5 x 10^4 / ( 3.5 + 9.8 )
m = 3,383.5 kg
