Part 1)
here we can say that since block slides down by 1 m in 4 s
so here we know that
d = 1 m
t = 4 s
so we can use kinematics equation to find the acceleration
Part 2
by force equation on mass m2 we can say
for another block of mass m1
solving above equations we will have
Part 3
now for mass m2 we have
<span>Alicia
wanted to pull out a particular issue from a pile of magazines. First,
she tried pulling slowly, and the whole pile began to move. Then she
tried pulling quickly, and the issue she wanted came out without the
pile moving. The pile did not move because of the?
a. larger force Alicia applied
b. smooth surface of the magazines
c. inertia of the pile and friction <--- *** Answer ***
d. friction between the magazines
(If this is your question)
Hope this helps :p
</span>
Explanation:
It is known that relation between torque and angular acceleration is as follows.
and, I =
So,
= 4
So,
= 1
as
=
Hence,
Thus, we can conclude that the new rotation is times that of the first rotation rate.
Answer:
-5.1 kg m/s
Explanation:
Impulse is the change in momentum.
Change in momentum= final momentum - initial momentum=m +m
Plugging in the values= -0.15*24 - (0.15*10) (The motion towards the pitcher is negative as the initial motion is considered to be positive)
Impulse=-5.1 kg m/s (-ve means that it is the impulse towards the pitcher)
The correct answer is x-rays