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A train accelerates from 10 m/s to 50 m/s in 20 seconds. Calculate the Acceleration

The acceleration, in ms - 2 , is defined as the rate of change of velocity, per unit of time. To calculate the trains acceleration, we use the equation Acceleration= Change in velocity/ Time Taken. For this ...
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Answered by Monique P. • Physics tutor
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Describe how making a saucepan black and adding fins will help heat food up faster

Black - Heat radiation will be transferred better as more radiation will be absorbed due to the colour Fins - Higher surface area therefore a quicker rate of heat transfer
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Answered by Hannah G. • Physics tutor
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What is the difference between evaporation and boiling?

Both evaporation and boiling are a process where a liquid change state into a gas. Boiling happens to all of a liquid at once and occurs only when a liquid is heated to one specific temperature, it's boiling...
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Answered by Louis D. • Physics tutor
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A ball is launched from ground level at 5m/s at an angle of 30 degrees above the horizontal. What is its height above ground level at the highest point in its trajectory?

STEP 1: Draw a diagram! Remember to include all the useful information you are given in the question i.e. the initial velocity of the ball (5m/s at 30 degrees above the horizontal). This can be shown as a ve...
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Answered by Iestyn H. • Physics tutor
7083 Views

A block of mass (m) is placed on a rough slope inclined at an angle (a) to the horizontal, find an expression in terms of (a) for the smallest coefficient of friction (x), such that the block does not fall down the slope.

The first thing to do as with any mechanics question is draw a force diagram with the weight (mg), the friction (F) and the normal reaction (R). As we are finding the smallest coefficient of friction possibl...
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Answered by Ollie W. • Physics tutor
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