Question

Task
Write the formula
Speed
Velocity
Speed=Distance Velocity=(isplacement
Time
Displacement: Time
Time period:
Time period:
Write the units of the
Distance:
quantities​

Answer 1

Answer:

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Answer 2

Answer:

• The formula for speed is speed = distance ÷ time. To work out what the units are for speed, you need to know the units for distance and time. In this example, distance is in metres (m) and time is in seconds (s), so the units will be in metres per second (m/s).
• Velocity formula = displacement ÷ time.
• If 'D' is the distance of an object in some time 'T', the speed is equal to, s = D/T. It has the same units as velocity.
• Or, T = √[M0 L1 T0] × [M0 L1 T-2]-1 = √[T2] = [M0 L0 T1]. Therefore, the time period is dimensionally represented as [M0 L0 T1].
• Dimensional Equations

Physical Quantity Dimensional Equation

Force (F) [F] = [M L T-2]

Power (P) [P] = [M L2 T-3]

Velocity (v) [v] = [M L T-1]Density (D) [D] = [M L3 T0]

Explanation:

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