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If an object going in a circle has a force acting on it then why is it travelling at a constant speed

Velocity is a vector quantity, which means it has a direction and a magnitude. Newtons second law says that force is equal to rate in change of velocity. When an object is travelling in a circle with constan...
VB
Answered by Vedant B. • Physics tutor
1854 Views

Find the eigenvalues and corresponding eigenvectors of the following matrix: A = [[6, -3], [4, -1]]. Hence represent the matrix in diagonal form.

The first eigenvalue is 3, whose corresponding eigenvector is (1, 1), and the second eigenvalue is 2, whose corresponding eigenvector is (3, 4). In diagonal form, A = PDP^-1, where P = [[1, 3], [1, 4]] and D...
MU
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Why do airbags make a car safer

In a car crash the car decelerates really quickly. If there is no air bag your head continues to travel at the same speed as before until it hits the dash board and decelerates really quickly upon impact, si...
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Answered by Vedant B. • Physics tutor
3241 Views

How would I prepare for my Maths exams so that I get the best grade possible?

I would recommend that all A-level students should attempt all previous exam papers at least once. This is to pick up on common tricks that the examiner uses and in most cases these tricks keep coming up eac...
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Answered by Tom R. • Maths tutor
3680 Views

Describe a holiday you have been on.

L'année dernière je suis allée à Paris avec ma famille. Nous avons fait beaucoup de choses, par example nous avons visité la tour Eiffel et aussi Notre Dame. Mon chose préfèré était le musée de Louvre parce ...
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Answered by Charlotte M. • French tutor
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