Question
The velocity at an instant is called as _____.
- Average energy
- Instantaneous speed
- Average acceleration
- Instantaneous velocity
Hint:
Instant means immediately.
The correct answer is: Instantaneous velocity
- Instantaneous velocity is defined as the rate of change of position for a time interval which is very small (almost zero). Measured using SI unit m/s. Instantaneous speed is the magnitude of the instantaneous velocity. It has the same value as that of instantaneous velocity but does not have any direction.
- For example, if a squash ball comes back to its starting after bouncing off the wall several times, its total displacement is zero and so also is its average velocity
Related Questions to study
The magnitude of the instantaneous velocity is _____.
The magnitude of the instantaneous velocity is _____.
Speed has no ________.
Speed has no ________.
Total displacement with respect to total time is called as ________.
Total displacement with respect to total time is called as ________.
Speed is a _____ quantity.
Speed is a _____ quantity.
The unit of the velocity is _____.
The unit of the velocity is _____.
The symbol 
represents _______.
The symbol represents _______.
If the displacement is zero, then the velocity will be _____.
If the displacement is zero, then the velocity will be _____.
The direction of the velocity is in the direction of _______.
The direction of the velocity is in the direction of _______.
Velocity is a ________ quantity.
Velocity is a ________ quantity.
If a car moves 4 m to the east and 6 m to the north, then find the resultant and the direction of the car.
If a car moves 4 m to the east and 6 m to the north, then find the resultant and the direction of the car.
If Tan A = 1, find the value of A as direction
If Tan A = 1, find the value of A as direction
The angle between the vector is more than 90 degrees, then the vectors are
The angle between the vector is more than 90 degrees, then the vectors are
If a vector has zero magnitude, then the vector is called as
Null vector is a directionless vector whose magnitude is zero and the resultant vector of two or more equal vectors that are acting opposite to each other.
If a vector has zero magnitude, then the vector is called as
Null vector is a directionless vector whose magnitude is zero and the resultant vector of two or more equal vectors that are acting opposite to each other.
Parallelogram law is used when _______
In parallelogram law of vector addition, it says that if we place two vectors so they have the same initial points(the tails are connected) and then complete the vectors into a parallelogram, then the sum of the vectors is directed diagonal that starts at the same point as the vectors.
Parallelogram law is used when _______
In parallelogram law of vector addition, it says that if we place two vectors so they have the same initial points(the tails are connected) and then complete the vectors into a parallelogram, then the sum of the vectors is directed diagonal that starts at the same point as the vectors.
