Related Questions to study

Grade-9
science

Which of the following is not an accelerated motion?

Which of the following is not an accelerated motion?

scienceGrade-9
Grade-9
science

A body moving at a velocity of 4 m/s uniformly accelerates to a velocity of 24 m/s. Its average velocity is ___ m/s.

A body moving at a velocity of 4 m/s uniformly accelerates to a velocity of 24 m/s. Its average velocity is ___ m/s.

scienceGrade-9
Grade-9
science

A biker takes 2.5 laps of a circular track of radius 7 m. Her distance and displacement are ___ m and ___ m respectively.

A biker takes 2.5 laps of a circular track of radius 7 m. Her distance and displacement are ___ m and ___ m respectively.

scienceGrade-9
parallel
Grade-9
science

A car covers the first 200 m in 30 seconds and the next 400 m in 30 seconds. Its average speed is ___ m/s.

A car covers the first 200 m in 30 seconds and the next 400 m in 30 seconds. Its average speed is ___ m/s.

scienceGrade-9
Grade-9
science

An athlete running at a velocity of 5 m/s slows down to 2 m/s in 3 seconds. Her acceleration is ___ m/s2.

An athlete running at a velocity of 5 m/s slows down to 2 m/s in 3 seconds. Her acceleration is ___ m/s2.

scienceGrade-9
Grade-9
science

A bus moves in such a way that its velocity increases by 9 m/s every second. What is its acceleration?

A bus moves in such a way that its velocity increases by 9 m/s every second. What is its acceleration?

scienceGrade-9
parallel
Grade-9
science

An object in a uniform motion ___.

An object in a uniform motion ___.

scienceGrade-9
Grade-9
science

Peter wants to modify the formula for acceleration
i.e., a = (v – u)/ t
Where v = final velocity, u = initial velocity, t= time, a = acceleration, to suit the special case of freefall of a ball dropped from the top of a building. He chooses to make the following substitutions in the formula.
a. v= 0
b. u= 0
c. a= 9.8 m/s2
Identify the correct substitutions.

Peter wants to modify the formula for acceleration
i.e., a = (v – u)/ t
Where v = final velocity, u = initial velocity, t= time, a = acceleration, to suit the special case of freefall of a ball dropped from the top of a building. He chooses to make the following substitutions in the formula.
a. v= 0
b. u= 0
c. a= 9.8 m/s2
Identify the correct substitutions.

scienceGrade-9
Grade-9
science

A car is moving at a speed of 5 m/s in the same direction throughout its motion. Which of the following is true about its motion?

A car is moving at a speed of 5 m/s in the same direction throughout its motion. Which of the following is true about its motion?

scienceGrade-9
parallel
Grade-9
science

Which of the following value(s) can distance take?

Which of the following value(s) can distance take?

scienceGrade-9
Grade-9
science

An object falling from the top of a building reaches a velocity of ___ m/s in 20 s.

An object falling from the top of a building reaches a velocity of ___ m/s in 20 s.

scienceGrade-9
Grade-9
science

A train starts from rest and picks up a velocity of 20 m/s in 4 s. The acceleration of the train is ___ m/s2.

A train starts from rest and picks up a velocity of 20 m/s in 4 s. The acceleration of the train is ___ m/s2.

scienceGrade-9
parallel
Grade-9
science

A car is moving at a speed of 20 m/s towards east. In which of the following cases its velocity is said to be changed?

A car is moving at a speed of 20 m/s towards east. In which of the following cases its velocity is said to be changed?

scienceGrade-9
Grade-9
science

A person runs around a square park of side 10 m, 4 times. What is the distance and displacement covered by the person ?

A person runs around a square park of side 10 m, 4 times. What is the distance and displacement covered by the person ?

scienceGrade-9
Grade-9
science

The driver of a car moving at a velocity of 50 m/s applies brakes and eventually stops after 10 s. What is the acceleration of the car?

The driver of a car moving at a velocity of 50 m/s applies brakes and eventually stops after 10 s. What is the acceleration of the car?

scienceGrade-9
parallel

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