Mechanics | Relativity Answers

a lady and a child pushing a shopping trolley. the lady pushes with a force of 40N and child with a force of 10N. whats horizontal force and name of forces acting on the trolley

Imagine that you are in a car,driving along a main road.Along the road,there are sign telling you how far it is to the next town.At the roadside,there may be marker posts every 100 meters.Describe how you could use these road signs to work out the average speed of the car

"what is the relationship between amplitude of piston in simple harmonic motion and the displacement amplitude of particle of medium in longitudinal waves."

a force of 20 N is applied on a body so that it attains a velocity of 10 m/s in 2 s. what is the mass of the body?

a rope tied to a tree and a car bumper with 300 N of force applied mid way between applies how much force to the car if the rope is deflected 5 degrees.

A bird is flying at 10 m s-1 forwards. At the same time a side wind blows it at 4 m s-1to the right.

Calculate the resultant velocity of the bird.

At takeoff, the horizontal and vertical velocities of a high jumper are 2.0 and 3.9 m/s, respectively. What are the resultant velocity and angle of takeoff?

A person reached the point directly opposite on the other bank of flowing river while swimming at the speed of 5 metre per second at the angle of 120 degree with the flow the speed of flow must be

A hovering mosquito is hit by a raindrop that is 30 times as massive and falling at 8.1 m/s , a typical raindrop speed. How fast is the raindrop, with the attached mosquito, falling immediately afterward if the collision is perfectly inelastic?

A dart leaves the thrower's hand horizontally at a height of 1.9m above the ground. It strikes the board 3m away at a height of 1.5m above the ground. Calculate the horizontal velocity at which the dart left the thrower's hand