3.3 Forces and Newton's Laws

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Question 25

59%

A particle $P\,$ of mass 2kg moves with constant acceleration under the action of a force $F\,$ N. The initial velocity of $P\,$ is $(−2i+6j)(-2\mathbf{i} + 6\mathbf{j})$ ms $^{-1}$ and after 4 seconds the velocity of $P\,$ is $(7i+2j)(7\mathbf{i} + 2\mathbf{j})$ ms $^{-1}$ .

a.

Find the magnitude of the acceleration.

[3]

b.

Find the angle between $F\,$ and the vector $i\mathbf{i}$ .

[3]

3.3 Forces and Newton's Laws

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Question 25

59%

A particle $P\,$ of mass 2kg moves with constant acceleration under the action of a force $F\,$ N. The initial velocity of $P\,$ is $(−2i+6j)(-2\mathbf{i} + 6\mathbf{j})$ ms $^{-1}$ and after 4 seconds the velocity of $P\,$ is $(7i+2j)(7\mathbf{i} + 2\mathbf{j})$ ms $^{-1}$ .

a.

Find the magnitude of the acceleration.

[3]

b.

Find the angle between $F\,$ and the vector $i\mathbf{i}$ .

[3]

3.3 Forces and Newton's Laws

Question 25

3.3 Forces and Newton's Laws Questions

3.3 Forces and Newton's Laws

Question 25

3.3 Forces and Newton's Laws Questions