Two buses start from a bus stand with velocitues ` 10 km h^(-1)` and ` 30 km h^(-1)` along two trachs inclined at an angle ` 60^@` . Find the distance between them agter `12 munutes.

A bus decrease its speed from 80 km h^(-1) to 60 km h^(-1) in 5 sec. Find acceleration of the bus.

Two persons start walking on a road that diverge at an angle of 120^(@) . If they walk at the rate of 3 km/h and 2 km/h respectively. Find the distance between them after 4 hours.

A train takes 3 h to travel from Agra to Delhi with a uniform speed of 65 km h^(-1) '. Find the distance between the two cities.

Two trains are coming from opposite directions with speeds of 75 km/hr and 100 km/hr on two parallel tracks. At some moment the distance between them is 100 km. After T hours, distance between them again 100 km. T is equal to 1 h r b. 1 1/7h r c. 1 1/2h r d. 2 h r s

A ship A is moving Westwards with a speed of 10 km h^(-1) and a ship B 100 km South of A, is moving Northwards with a speed of 10 km h^(-1). The time after which the distance between them becomes shortest, is :

A ship A is moving westwards with a speed of 10 km h^(-1) and a ship B 100 km south of A, is moving northwards with a speed of 10 km h^(-1) The time after which the distance between them becomes shortest, is