3.3 Forces and Newton's Laws

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Question 31

84%

A particle $P\,$ moves with constant acceleration $(3i−4j)(3\mathbf{i} - 4\mathbf{j})$ ms $^{-2}$ . At time $t = 0$ , $P\,$ has speed $u\,$ ms $^{-1}$ . At time $t = 3$ , $P\,$ has velocity $(−5i+2j)(-5\mathbf{i} + 2\mathbf{j})$ ms $^{-1}$ .

Find the value of $u$ .

[5]

3.3 Forces and Newton's Laws

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Question 31

84%

A particle $P\,$ moves with constant acceleration $(3i−4j)(3\mathbf{i} - 4\mathbf{j})$ ms $^{-2}$ . At time $t = 0$ , $P\,$ has speed $u\,$ ms $^{-1}$ . At time $t = 3$ , $P\,$ has velocity $(−5i+2j)(-5\mathbf{i} + 2\mathbf{j})$ ms $^{-1}$ .

Find the value of $u$ .

[5]

3.3 Forces and Newton's Laws

Question 31

3.3 Forces and Newton's Laws Questions

3.3 Forces and Newton's Laws

Question 31

3.3 Forces and Newton's Laws Questions