Related Questions to study

Grade-9
science

A biker starts from rest and attains a velocity of 10 m/s in 5 s. Her acceleration is ____ m/s2.

A biker starts from rest and attains a velocity of 10 m/s in 5 s. Her acceleration is ____ m/s2.

scienceGrade-9
Grade-9
science

A vehicle’s displacement increases by 4 m every second. What does it mean?

A vehicle’s displacement increases by 4 m every second. What does it mean?

scienceGrade-9
Grade-9
science

An object’s velocity decreases by equal amounts in equal intervals of time. The object is in ____.

An object’s velocity decreases by equal amounts in equal intervals of time. The object is in ____.

scienceGrade-9
parallel
Grade-9
science

The acceleration of a body thrown upwards is ___.

The acceleration of a body thrown upwards is ___.

scienceGrade-9
Grade-9
science

An object comes to rest. It means that ___.

An object comes to rest. It means that ___.

scienceGrade-9
Grade-9
science

A body is accelerating negatively. Its _____.

In this case, the velocity is decreasing and hence, the body is negatively accelerating.

A body is accelerating negatively. Its _____.

scienceGrade-9

In this case, the velocity is decreasing and hence, the body is negatively accelerating.

parallel
Grade-9
science

A vehicle’s velocity increases by 5 m/s every second. What does it mean?

Acceleration can be defined as the rate of change of velocity of an object with respect to time and in this case, the vehicle is also accelerating with a unform change in velocity.

A vehicle’s velocity increases by 5 m/s every second. What does it mean?

scienceGrade-9

Acceleration can be defined as the rate of change of velocity of an object with respect to time and in this case, the vehicle is also accelerating with a unform change in velocity.

Grade-9
science

An object starts from rest. It means that _____.

Rest implies that the body was stationary with respect to the ground. Any body which doesn't move has zero velocity, since it doesn't covers any distance. Thus, any body starting from rest has initial velocity= zero.

An object starts from rest. It means that _____.

scienceGrade-9

Rest implies that the body was stationary with respect to the ground. Any body which doesn't move has zero velocity, since it doesn't covers any distance. Thus, any body starting from rest has initial velocity= zero.

Grade-9
science

A body is positively accelerating. Its ____

If an object travels in a straight line and it's velocity increases or decreases by equal amounts in equal intervals of time, then the acceleration of the object is said to be uniform.

A body is positively accelerating. Its ____

scienceGrade-9

If an object travels in a straight line and it's velocity increases or decreases by equal amounts in equal intervals of time, then the acceleration of the object is said to be uniform.

parallel
Grade-9
science

The displacement of a body = _____.

The displacement of a body = _____.

scienceGrade-9
Grade-9
science

Which of the following is called the position-time relation?

s = ut + ½ at² is position-time relation as it has both the components of position and time.

Which of the following is called the position-time relation?

scienceGrade-9

s = ut + ½ at² is position-time relation as it has both the components of position and time.

Grade-9
science

A car travels 2 m in a second. What is the speed of the car?

A car travels 2 m in a second. What is the speed of the car?

scienceGrade-9
parallel
Grade-9
science

An object’s velocity increases by equal amounts in equal intervals of time. It is in _____.

In uniformly accelerated motion the object's velocity increases by equal amounts at equal intervals of time.

An object’s velocity increases by equal amounts in equal intervals of time. It is in _____.

scienceGrade-9

In uniformly accelerated motion the object's velocity increases by equal amounts at equal intervals of time.

Grade-9
science

Mira plotted a s-t graph of her car journey by collecting data during a drive. She started from rest and slowly increased her velocity until it reached a particular value. Then she maintained a uniform motion. Lastly, she slowed down gradually to bring the car to a stop. Which of the following graphs would resemble the graph plotted by Mira?

 

Mira plotted a s-t graph of her car journey by collecting data during a drive. She started from rest and slowly increased her velocity until it reached a particular value. Then she maintained a uniform motion. Lastly, she slowed down gradually to bring the car to a stop. Which of the following graphs would resemble the graph plotted by Mira?

 

scienceGrade-9
Grade-9
science

The s-t graph of a car is shown in the figure below. Choose the option that shows the right ascending order of the magnitudes of velocities that the car had throughout its motion.

The s-t graph of a car is shown in the figure below. Choose the option that shows the right ascending order of the magnitudes of velocities that the car had throughout its motion.

scienceGrade-9
parallel

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