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Does a negative acceleration always mean that the object is slowing down?

Sometimes, but definitely not always! Note: it's all dependent on which direction has been assigned '+'. Acceleration is a vector quantity , (the rate of change of velocity), meaning it has both magnitude an...
RG
Answered by Rohan G. • Physics tutor
18725 Views

A conical pendulum is a mass suspended from a point that traces out a horizontal circle. By balancing the weight with the tension in the string, determine the speed of the bob.

Draw a free-body diagram for the mass with the pendulum suspended at an angle θ to the vertical. The tension in the rope is T and the radius of the circle is r. Firstly, resolve horizontal forces and equate ...
DS
Answered by Daniel S. • Physics tutor
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A car travels 100 metres in 20 seconds. i) What is the cars speed? ii) How far would the car travel in 1 minute 40 seconds?

To answer this question, we will need the following equation: SPEED = DISTANCE/TIME (A multiplication and division triangle will be shown)i) The speed of the car is calculated by doing 100 metres/ 20 seconds...
DH
Answered by Delwar H. • Physics tutor
21645 Views

What is the difference between renewable and non renewable energy resources and give examples for each category

Renewable Energy resource is cannot be used up as they can be replaced whereas non-renewable energy resources cannot be replaced once they're used up. Examples of Non-renewables are coal, oil, gas and nuclea...
ZX
Answered by Zieger X. • Physics tutor
3031 Views

Describe the process of the big bang

A cluster of dust collapse under gravity. A protostar is then formed. The protostar starts fusing in Hydrogen to become a main sequence star. The star then fuses Hydrogen to create larger elements. Depending...
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Answered by Zieger X. • Physics tutor
2515 Views