Vectors Test - ...

P, Q and R are three coplanar forces acting at a point and are in equilibrium. Given P = 1.9318 kg wt, sin Q = 0.9659, the value of R is (in kg wt)

A body is in equilibrium under the action of three coplanar forces P,Q and R as shown in the figure. Select the correct statement.

As shown in figure the tension in the horizontal cord is 30 N. The weight W and tension in the string OA in Newton are

Two cars are moving in the same direction with the same speed 30 km/hr. They are separated by distance of 5 km, the speed of a car moving in the opposite direction if it meets these two cars at an interval of 4 min, will be

A boat crosses a river with a velocity of 8 km/hr. If the resulting velocity of boat is 10 km/hr, then the velocity of river water is

A boat takes two hours to travel 8 km and back in still water. If the velocity of water is 4 km/hr, the time taken for going upstream 8 km and coming back is

A boat is moving with a velocity 3i + 4j with respect to ground. The water in the river is moving with a velocity –3i – 4j with respect to ground. The relative velocity of the boat with respect to water is