What type of liquid would never freeze
2 answers:
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Answer:
Explanation:
Let be the time required to make one revolution.
Let be the radius of the circular path.
Let be the distance travelled by ball in one revolution.
As we know,the distance travelled in one revolution is the circumference of the circle.
So,
Given,
Speed of an object moving is circular path is define as the ratio of distance travelled in one revolution to the time taken by the object to complete one revolution.
Let be the speed of the ball.
So,the speed of the ball is
Answer:
The magnitude = 10.30 m
The direction of the vector proceeds at angle of 119.05°
Explanation:
Given that:
A vector has component
= -5 m and
= 9 m
The magnitude of vector can be represented as:
=
=
=
=
= 10.30 m
If we make an angle
with y- axis:
Then; tan =
tan =
tan = 0.555
= tan⁻¹ (0.555)
= 29.05°
Angle with positive x-axis = 90 +
= 90° + 29.05°
= 119.05°