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step 1: find objects weight by doing 9.81x10= 98kg (2s.f.)step 2: draw a triangle of forces about the object including all information you know e.g. 45 degree angle step 3: force down the slope use the eq...

My first thought when dealing with resultant forces is to try out the most common combinations: combined and opposite. In this case 10N + 4N = 14N and 10N - 4N = 6N. This tactic does rule out two of the a...

When a wave reaches the end of a string, it is reflected and inverted, so in a fixed string in which we've caused vibrations, such as a guitar string, we have two sinusoidal waves travelling in opposite d...

Because their speed might remain constant, but their velocity doesn't. Remember, velocity is a vector, so it has magnitude (which is the speed of the object), but also direction. For an object moving in a...

If you've been given the angle the vector makes with an axis, you can find the component of the vector parallel to that axis by multiplying the size of the vector by the cosine of the angle it makes with ...