A body is projected up such that its position vector varies with time as `vecr={3thati+(4t-5t^(2))hatj} m`. Here `t` is in second.The time when its `y`-coordinate is zero is

A body is projected up such that its position vector varies with time as vecr={3thati+(2t-t^(2))hatj} m . Here t is in second.The time when its y -coordinate is zero is

A body is projected up such that its position vector varies with time as r = { 3thati + (4 t - 5t^2)hatj} m. Here, t is in seconds. Find the time and x-coordinate of particle when its y-coordinate is zero.

A body is projected up such that its position vector varies with time as r = { 3thati + (4 t - 5t^2)hatj} m. Here, t is in seconds. Find the time and x-coordinate of particle when its y-coordinate is zero.

A body is projected up such that its position vector varies with time as vecr = 6t hati+(8t-5t^2) hatj . Find the initial velocity.

A body is projected up such that its position vector varies with time as vecr = 6t hati+(8t-5t^2) hatj . Find the time of flight.

A body is projected up such that its position vector varies with time as barr=6t hati+(8t-5t^(2))hatj. Find the (a) initial velocity (b) time of fight.

An object moves along x-axis such that its position varies with time according to the relation x=50t-5t^(2) Here, x is in meters and time is in seconds. Find the displacement and distance travelled for the time interval t = 0 to t = 6 s.

An object moves along x-axis such that its position varies with time according to the relation x=50t-5t^(2) Here, x is in meters and time is in seconds. Find the displacement and distance travelled for the time interval t = 0 to t = 6 s.

A particle moves in space such that its position vector varies as vec(r)=2thati+3t^(2)hatj . If mass of particle is 2 kg then angular momentum of particle about origin at t=2 sec is

A particle moves in space such that its position vector varies as vec(r)=2thati+3t^(2)hatj . If mass of particle is 2 kg then angular momentum of particle about origin at t=2 sec is