1.

17.A helicopter moving vertically upwards, releases a packet when it is at a certain height above the ground. The packet initially moves upwards for a time t1 and then falls downward for a time t2 until it reaches the ground. Then 1.t1 t2 4. Data insufficient

Answer» 17.A helicopter moving vertically upwards, releases a packet when it is at a certain height above the ground. The packet initially moves upwards for a time t1 and then falls downward for a time t2 until it reaches the ground. Then 1.t1 t2 4. Data insufficient


Discussion

No Comment Found