Answer following questions (i) State type of motion shown by a freely falling stone. (ii) When a sto

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7. MOTION

easy

Answer the following questions

$(i)$ State the type of motion shown by a freely falling stone.

$(ii)$ When a stone is thrown vertically upwards its velocity is continuously decreased. Why ?

$(iii)$ Give an example of a motion in which average velocity is zero, but the average speed is not zero.

Option A

Option B

Option C

Option D

Solution

$(i)$ Uniform motion.

$(ii)$ The stone is continuously being attracted by the earth, this causes retardation in the stone's motion, hence its velocity goes on decreasing continuously

$(iii)$ Uniform circular motion.

Standard 9

Science

Distinguish between terms speed and velocity.

medium

A cyclist travels a distance of $4\, km$ from $P$ to $Q$ and then moves a distance of $3\, km$ right angle to $PQ$. Find his resultant displacement graphically.

easy

What is velocity$-$time graph ? State how it can be used to find

$(i)$ the acceleration of a body,

$(ii)$ the displacement of the body,

$(iii)$ the distance travelled in a given time.

hard

Area under a $v -t$ graph represents a physical quantity which has the unit

easy

Write true or false for the following statements

In one$-$dimensional motion, the average velocity and the instantaneous velocity are unequal.

easy

Answer the following questions $(i)$ State the type of motion shown by a freely falling stone. $(ii)$ When a stone is thrown vertically upwards its velocity is continuously decreased. Why ? $(iii)$ Give an example of a motion in which average velocity is zero, but the average speed is not zero.

Solution

Similar Questions

Distinguish between terms speed and velocity.

A cyclist travels a distance of $4\, km$ from $P$ to $Q$ and then moves a distance of $3\, km$ right angle to $PQ$. Find his resultant displacement graphically.

What is velocity$-$time graph ? State how it can be used to find $(i)$ the acceleration of a body, $(ii)$ the displacement of the body, $(iii)$ the distance travelled in a given time.

Area under a $v -t$ graph represents a physical quantity which has the unit

Write true or false for the following statements In one$-$dimensional motion, the average velocity and the instantaneous velocity are unequal.

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Answer the following questions

$(i)$ State the type of motion shown by a freely falling stone.

$(ii)$ When a stone is thrown vertically upwards its velocity is continuously decreased. Why ?

$(iii)$ Give an example of a motion in which average velocity is zero, but the average speed is not zero.

What is velocity$-$time graph ? State how it can be used to find

$(i)$ the acceleration of a body,

$(ii)$ the displacement of the body,

$(iii)$ the distance travelled in a given time.

Write true or false for the following statements

In one$-$dimensional motion, the average velocity and the instantaneous velocity are unequal.