Answer:
Explanation:
Given that,
The blade of a windshield wiper moves through an angle of 90.0° in 0.397 s
The radius of the circlular path is 0.376 m
We need to find the magnitude of the centripetal acceleration of the tip of the blade. Let it is a. The formula of the centripetal acceleration is given by :
v is velocity,
It moves through an angle of 90 degrees, it means
So,
So, the magnitude of the centripetal acceleration of the tip of the blade is .
Answer:
ANGLE is 35.3 degree celcius
Explanation:
Given data:
mass m and 3m
initial speed Vi
particle with mass m is moving toward left while particle with mass 3m is moving toward right
By using conservation of momentum :
conservation of energy :
After collision, particle with mass m moves at right angles, thus by considering conservation of momentum in x & y direction,
x direction :
y direction :
subsitute these value in energy conservation
35.3 degree from x-axis
The centripetal acceleration is 172 m /s^2.
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<u>Explanation:</u>
The acceleration that causes an object to move along a circular path, or turn is known as the centripetal acceleration. Centripetal acceleration points radially inward from the object's position and making a right angle with the object's velocity vector.
The centripetal acceleration is given as
Ac = v^2 / r
where Ac represents the centripetal acceleration of an object.
v represents the linear velocity
r represents the radius of rotation.
Given t = 0.64 s, r = 1.8 m.
To find linear velocity, v = (2 * pi * r) / t
= (2 * 3.14 * 1.8) / 0.64
v = 17.6 m / s.
Centripetal acceleration = v^2 / r
= (17.6 * 17.6) / 1.8
= 172 m / s^2.