Question

A physical quantity measured is – 10 ms-1. Is it speed, velocity or acceleration? Mention three ways in which this quantity can be altered.

Answer 1

Answer:

The physical quantity is  velocity. As the magnitude of the quantity is negative,  it cannot be speed. The units of the quantity is m/s which are not the units of acceleration.

Three ways of altering:

1. Taking the magnitude of the quantity ( in other words, removing the minus sign) will give speed. ( Assuming the body is travelling in straight line).
2. Multiplying the quantity by time will give Displacement.
3. Dividing the Quantity by time will give acceleration.

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Answer 2

Answer:

Explanation:

Answer:

The physical quantity is  velocity. As the magnitude of the quantity is negative,  it cannot be speed. The units of the quantity is m/s which are not the units of acceleration.

Three ways of altering:

Taking the magnitude of the quantity ( in other words, removing the minus sign) will give speed. ( Assuming the body is travelling in straight line).

Multiplying the quantity by time will give Displacement.

Dividing the Quantity by time will give acceleration.