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A ball is thrown at speed u = 10.0 m/s at an angle of 30.0 degrees to the ground at height, s = 0. How far does the ball travel horizontally from its starting position? (Ignore air resistance and taking g = 9.81 m/s^2)

First, find the speed of the ball in the horizontal (x) and vertical (y) directions. u x = u cos(30) = 8.66m/s and u y = u sin(30) = 5 m/s. Using an appropriate suvat equation find the time until the ball la...
AT
Answered by Alex T. • Physics tutor
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Describe the Hjulström curve.

The critical erosion velocity line shows the minimum velocity needed to transport and erode a particle. Common sense tells us that the larger the particle, the more energy it needs to pick it up and be erode...
HF
Answered by Hayley F. • Geography tutor
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translate into english the following sentence: censit ne cui civium noceret, sed ut toti rei publicae consuleret

He resolved to avoid injuring anyone of his subjects, but to consult the good of the whole nation
HB
Answered by Hermione B. • Latin tutor
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How to plot quadratic functions, e.g. F(x)= x^2 + 2x +1

What we require to plot this graph are the following: the general shape of the graph, the intercepts with the x and y axes and the maximum point/minimum point. All functions with x 2 as the highest order are...
AS
Answered by Alexandra S. • Maths tutor
7025 Views

How do you solve simultaneous questions?

When an equation has two or more variables, for example and x and y, more than one equation is need to solve it. The number of equations needs is equal to the number of variables you have. For example, if yo...
ES
Answered by Elise S. • Maths tutor
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