A particle is projected with speed 𝒗_𝒐 (upwards) at an angle ϴ from horizontal. The average velocity

A particle is projected with speed 𝒗_𝒐 (upwards) at an angle ϴ from horizontal. The average velocity of particle between point of projection and highest point on the trajectory isa)𝒗_𝒐/𝟑 √(𝟏+𝟑〖𝒄𝒐𝒔〗^𝟐 ϴ) b) 𝒗_𝒐/𝟐 √(𝟏+𝟑〖𝒄𝒐𝒔〗^𝟐 ϴ) c) 𝒗_𝒐/𝟐 √(𝟏+𝟑〖𝒔𝒊𝒏〗^𝟐 ϴ) d) 𝒗_𝒐/𝟑 √(𝟏+𝟑〖𝒔𝒊𝒏〗^𝟐 ϴ)