Two bodies are thrown simultaneously from the same point with equal speed 20 m s⁻¹. One is thrown vertically upward and the other at 30° above horizontal. Neglect air resistance. Find their separation after 1.2 s.
Options

Question

Two bodies are thrown simultaneously from the same point with equal speed 20 m s⁻¹. One is thrown vertically upward and the other at 30° above horizontal. Neglect air resistance. Find their separation after 1.2 s.

Options

G1 Physics · Accepted Answer

Both have identical gravitational acceleration, so relative acceleration is zero. Initial relative velocity magnitude is |20ĵ-(20cos30°î+20sin30°ĵ)|=20 m s⁻¹. Separation after 1.2 s=20×1.2=24 m. Option C.