Does the normal force equal the weight when you pull upward on an object?

Normal force is defined as the force that a surface exerts on an object. If the object is at rest, net force on the object is equal to zero; therefore, the downward force (weight) must be equal to the upward force (normal force).

When an object is thrown vertically upward the force of gravity?

Textbook solution. opposite to the direction of motion. Force of gravity always acts towards the centre of the Earth. When an object is thrown vertically upwards, the force of gravity acts in the opposite direction of motion, i.e., towards the centre of the Earth.

What is the force of an object thrown upward?

What are the forces acting on a ball thrown upwards? Considering the Air resistance or Drag force negligible, the only force acting on the ball is Gravity i.e. the Gravitational Pull of the earth towards the center of it.

When an object is thrown vertically upwards at the highest point the body acceleration is equal to?

So, even at the highest point, the acceleration will be 9.8 m/s².

Why do you feel heavier when accelerating upwards?

If you stand on a scale in an elevator accelerating upward, you feel heavier because the elevator’s floor presses harder on your feet, and the scale will show a higher reading than when the elevator is at rest. The force exerted by the scale is known as apparent weight; it does not change with constant speed.

What forces acting upwards on the block?

It’s just the gravitational force and the frictional force. Yes, the magnitude of the frictional force must be equal to the weight. The friction is in the vertical direction because it is parallel to the wall (which is vertical).

What is it called when an object is thrown vertically upwards?

When initially thrown up the velocity is upward , with a decreasing magnitude (downward acceleration) until it instantaneously stops (zero velocity magnitude) and then with an increasing velocity vector downward. Direction of velocity at a point is always same as the direction of motion or displacement.

When an object is thrown vertically upwards why does its speed decreases?

Now as the ball goes up, its speed decreases due to two reasons: Gravitational pull of earth on the ball – acceleration due to gravity tends to decrease the speed during upward motion and increase the speed during downward motion.

What is the momentum at the highest point of a ball thrown vertically upwards?

Momentum = Mass × Velocity Hence, momentum is zero.

What is the acceleration of a pebble at its highest point if it is thrown vertically into the air?

The cause of the ball’s acceleration is gravity. The entire time the ball is in the air, its acceleration is 9.8 m/s2 down provided this occurs on the surface of the Earth. Note that the acceleration can be either 9.8 m/s2 or -9.8 m/s2….Objects Launched Upward.

Variable	Value
Δy	FIND
a	-9.8 m/s2
t	0.40 s