Speed of man towards West =2.5 m/s
Time to travel in the given direction = 1200 s
Total displacement towards west
Now speed of man towards East = 1 m/s
time to travel in east direction = 500 s
total displacement towards East
Now total displacement will be
so it is 2500 m towards west
Answer:
The centripetal acceleration of the stone is 5 m/s²
Explanation:
The length of the string to which the stone is attached, r = 1 m
The speed with which the string is rotated, v = 5 m/s
The centripetal acceleration, , is given as follows;
Therefore, the centripetal acceleration of the stone found as follows;
The centripetal acceleration of the stone, = 5 m/s².
Answer: Option (d) is the correct answer.
Explanation:
Physical change is defined as a change in which no new product is formed, that is, there is no change in chemical composition of a substance.
For example, when ice melt then solid state of water changes into liquid state.
That is, arrangement of atoms changes and bond between the atoms do no break during a physical change.
Thus, we can conclude that the property bonds between atoms do not break; it is only the arrangement that changes explains why matter is conserved in a physical change.
The amount of gravitational pull an object experiences is its mass
<h3>
What is Weight ?</h3>
Weight can be define as gravitational pull an object. It is a product of mass and acceleration due to gravity. That is, W = mg. It is measured in Newton (N)
The amount of gravitational pull an object experiences is its mass and not density because the weight of an object depend on its mass and acceleration due to gravity.
W = mg
where
- g = acceleration due to gravity
Therefore, the amount of gravitational pull an object experiences is its mass
Learn more about Weight here: brainly.com/question/19753744
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