Answer:
a.
b.30.4 N
Explanation:
We are given that
Mass of block=m=1.1 kg
Mass of cart=M=3.4 kg
Total mass=m+M=1.1+3.4=4.5 Kg
1.We have to find the maximum acceleration such that block does not slide on the cart.
Normal force=
Substitute the values
Using
Hence, the maximum acceleration such that block does not slide on the cart=
b.
Using the formula
Hence, the magnitude of the force on the cart required to provide the maximum acceleration=30.4 N
Answer:
Then its acceleration is zero.
Explanation:
Velocity → Uniform → Constant
→ Change in Velocity = 0
A= = (v=m)
a=0
You COULD find acceleration by taking a lot of distance measurements,
but that's definitely the hard way to do it.
Acceleration is (change in speed) divided by (time for the change).
So the basic way to calculate acceleration is to measure the change
in speed, not distance.
Answer:
Explanation:
It is given that,
Height of the building, h = 245 ft
The base of the building and shadow is x.
Let is the angle of elevation that is formed by lines from the top and bottom of the building to the tip of the shadow. Using the trigonometric ratio as :
When x = 300 feet
So, the rate of change of the angle of elevation is -0.001633 rad/ft. Hence, this is the required solution.