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A van of mass 2150kg with a driving force of 10,000 is accelerating at 3 m/s^2. Find the resultant force acting in the van, and also the frictional force on the van.

We have values for the mass and the acceleration of the van, so we can work out the resultant force acting on it using Newton’s second law: F r = ma F­ r­ = 2150 x 3 = 6450N Driving force – Resultant force =...
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Answered by Erin B. • Physics tutor
3358 Views

Iron can be extracted from iron ore by reaction with carbon at very high temperature in a blast furnace. In this process Fe2O3 is reduced to Fe. Explain what is meant by the term reduction.

Reduction: loss of oxygen (or gain of electrons)
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Answered by Mark T. • Chemistry tutor
5385 Views

Why do square roots have more than 1 solution?

As 3 2 is equivalent to (-3) 2 it follows that the square root of 9 must be + or -3.
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Answered by Masudul H. • Maths tutor
3674 Views

How do I form the imperfect tense in french?

Depending on the competence level/ preferred learning method of the child I would teach verbs slightly differently. For example, repetition through games, songs, acrostics, association with pictures etc. How...
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Answered by Eleanor W. • French tutor
4064 Views

The area of this rectangle is 56 cm2 length = 3k+2 and width = 7 - Find the value of k

The first step in answering any maths question is to identify key words or key information. Key information is area, length and width. We have been told that the total area is 56cm2. We know that area is len...
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Answered by Ayat B. • Maths tutor
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