Answer:
A-500 N
Explanation:
The computation of the tension in the chain is shown below
As we know that
F = ma
where
F denotes force
m denotes mass = 7
And, a denotes acceleration
Now for the acceleration we have to do the following calculations
The speed (v) of the hammer is
v = Angular speed × radius
where,
Angular seed = 2 × π ÷ Time Period
So, v = 2 × π × r ÷ P
v = 2 × 3.14 × 1.8 ÷ 1
= 11.304 m/s
Now
a = v^2 ÷ r
= 70.98912 m/s^2
Now the tension is
T = F = m × a
= 7 × 70.98912
= 496.92384 N
= 500 N
Answer:
D is the answer wave behavior
Answer:
A
Explanation:
Forces are vector quantities because they have both magnitude and direction.
Answer:
3N not 0N (first blank)
3N (second blank)
0N (third blank)
Explanation:
1st blank - If a force equals 0, it is balanced.
2nd blank - If one force of 3 Newtons is pushing to the left and another force of 3 Newtons is pushing from the right it wouldn't go anywhere, so it would be balanced at zero.
3rd blank - It would be 0N because forces of the same amount pushing opposite directions would be balanced.
(-,-)
when the ball is thrown upward, the ball experiences gravitational acceleration = 9.8 m/s² which is always downward.
So the velocity of ball starts decreasing and reaches 0 at highest point.
so, the velocity and acceleration are negative with respect to ball's direction of moving when the ball is going upward.
