Question
In which of the following cases can the equations of motion not be applied?
- Free fall
- A car moving at a constant speed of 3 m/s
- A randomly moving car
- A car moving at a constant acceleration of 3 m/s2
Hint:
The equation of motion is only applicable when the body moves with uniform acceleration.
The correct answer is: A randomly moving car
The equation of motion is not applicable for A randomly moving car.
Related Questions to study
A body is in a uniform circular motion. The equations of motion are _____.
A body is in a uniform circular motion. The equations of motion are _____.
The driver of a car moving at a speed of 20 m/s applies the brakes on seeing a rock at some distance. The car stops after 5 s. The car traveled ___ m after the brakes were applied.
Negative acceleration is known as deceleration.
The driver of a car moving at a speed of 20 m/s applies the brakes on seeing a rock at some distance. The car stops after 5 s. The car traveled ___ m after the brakes were applied.
Negative acceleration is known as deceleration.
A bus starts from rest and keeps increasing its speed by 3 m/s every second. It covers a distance of ____ in 20 s.
A bus starts from rest and keeps increasing its speed by 3 m/s every second. It covers a distance of ____ in 20 s.
A vehicle moving at a speed of 24 m/s accelerates to 56 m/s in 4 s. The acceleration of the vehicle is ___ m/s2.
A vehicle moving at a speed of 24 m/s accelerates to 56 m/s in 4 s. The acceleration of the vehicle is ___ m/s2.
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.
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?
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 ____.
The acceleration of a body thrown upwards is ___.
The acceleration of a body thrown upwards is ___.
An object comes to rest. It means that ___.
An object comes to rest. It means that ___.
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 _____.
In this case, the velocity is decreasing and hence, the body is negatively accelerating.
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?
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.
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 _____.
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.
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 ____
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.
The displacement of a body = _____.
The displacement of a body = _____.
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?
s = ut + ½ at² is position-time relation as it has both the components of position and time.
