Refer to the diagram shown below.
The given data is
mass, kg Coordinates. m
------------- -----------------
2 (0, 0)
2 (2, 0)
4 (2, 1)
Total mass, M = 2+2+4 = 8kg
Let (x,y) be the coordinates of M.
Then, taking moments about the origin, we obtain
8x = 2*0 + 2*2 + 4*2 = 12
x = 1.5 m
8y = 2*0 + 2*0 + 4*1 = 4
y = 0.5 m
Answer: (1.5, 0.5) m
Answer:
The angle of refraction of sheet 3 when sheet 1 is on top of it is
Explanation:
From the question we are told that
The angle of incidence is
The angle of refraction angle for sheet 1 is
The angle of refraction for sheet 3 is
According to Snell's law
Where are refractive index of sheet 1 and sheet 2
=>
Also when sheet 3 in on top of sheet 2
substituting for
=>
when sheet 1 in on top of sheet 3
where is the angle of refraction when sheet 1 is on top of sheet 3
substituting for
=>
substituting values
=>
=>
Answer:
The acceleration of the cart is 283.54g
Explanation:
It is given that,
Initial speed of the car, u = 35 km/h = 9.72 m/s
Finally, it stops, v = 0
Diameter of the dime, d = 1.7 cm
Let a is the acceleration of the car. Using third equation of motion to find it as :
So, the acceleration of the car is and it is decelerating.
Since,
So,
So, the acceleration of the cart is 283.54g. Hence, this is the required solution.