A cricket ball of mass 150 g has initial velocity u = (3 $\hat{i}+4\hat{j}$ ) m s⁻¹ and final velocity v = -(3 $\hat{i}+4\hat{j}$ ) m s⁻¹. Change in momentum is:
Options

Question

A cricket ball of mass 150 g has initial velocity u = (3 $\hat{i}+4\hat{j}$ ) m s⁻¹ and final velocity v = -(3 $\hat{i}+4\hat{j}$ ) m s⁻¹. Change in momentum is:

Options

G1 Physics · Accepted Answer

Use p = mv and conservation of total linear momentum for an isolated system. Resolving components with the given data gives C: -(0.90i + 1.20j) kg m s⁻¹.

A cricket ball of mass 150 g has initial velocity u = (3 i ^ + 4 j ^ \hat{i}+4\hat{j} i ^ + 4 j ^ ​ ) m s⁻¹ and final velocity v = -(3 i ^ + 4 j ^ \hat{i}+4\hat{j} i ^ + 4 j ^ ​ ) m s⁻¹. Change in momentum is:

A cricket ball of mass 150 g has initial velocity u = (3 i ^ + 4 j ^ \hat{i}+4\hat{j} i ^ + 4 j ^ ) m s⁻¹ and final velocity v = -(3 i ^ + 4 j ^ \hat{i}+4\hat{j} i ^ + 4 j ^ ) m s⁻¹. Change in momentum is: