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A particle P moves with acceleration (-3i + 12j) m/s^2. Initially the velocity of P is 4i m/s. (a) Find the velocity of P at time t seconds. (b) Find the speed of P when t = 0.5

Solution:

V = V(0) + a*t

From the question: a = (-3i + 12j);
AR
Answered by Artur R. • Maths tutor
6423 Views

Why do the atomic radii of the elements decrease across Period 3 from sodium to chlorine?

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Using the quadratics formula find the two solutions to x^2 + 3x + 2 = 0.

x₁= (-b + (b²- 4ac)^1/2)/2a and x₂= (-b - (b²- 4ac)^1/2)/2a. So with the values a = 1, b = 3 and c = 2: x₁= (-3 + (3^{2 <...}

Answered by Rebecca D. • Maths tutor

3552 Views

Starting with x^2+2x+1=0 use the method of factorising to solve for x.

x²+2x+1=0, (x+1)(x+1)=0, (x+1)²=0. So x=-1

Answered by Rebecca D. • Maths tutor

3739 Views

When should I conjugate the past participle when using the "avoir" auxilary.

When using the auxilary "avoir" the past participle's ending agrees both is gender and number with the direct object only when it is placed before the verbs' subject. Here's an example: Le chat...

Answered by Alice D. • French tutor

1764 Views