define terminal velocity

terminal velocity, steady speed achieved by an object freely falling through a gas or liquid. A typical terminal velocity for a parachutist who delays opening the chute is about 150 miles (240 kilometres) per hour.

What is meant by terminal velocity Class 11?

Terminal velocity is defined as the highest velocity attained by an object falling through a fluid. It is observed when the sum of drag force and buoyancy is equal to the downward gravity force acting on the object. The acceleration of the object is zero as the net force acting on the object is zero.

What is terminal velocity of a plane?

While flying face-down, jumpers indeed have an average terminal velocity of 120 mph, but if they are ‘freeflying’ – which means adapting your body position to fly in other orientations such as ‘head-up’ and ‘head-down’ – the average terminal velocity is more like 160mph.

Why is it called terminal velocity?

When drag is equal to weight, there is no net external force on the object and the vertical acceleration goes to zero. With no acceleration, the object falls at a constant velocity as described by Newton’s first law of motion. The constant vertical velocity is called the terminal velocity .

What is terminal velocity Ncert?

Terminal velocity is the maximum velocity of a body moving through a viscous fluid. It is attained when force of resistance of the medium is equal and opposite to the force of gravity.

How do you find the terminal velocity?

How do I find terminal velocity? To calculate terminal velocity: Multiply the mass of the object by the gravitational acceleration. Divide the resultant by the product of drag coefficient and projected area.

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