Which of the following is true when an object of mass m moving on a horizontal frictionless surface?

Which of the following is true when an object of mass m moving on a horizontal frictionless surface?

Answer and Explanation: When an object of mass moving on a horizontal frictionless surface hits and sticks to an object of mass , (D) the speed of the objects that are stuck together will be less than the initial speed of the less-massive object.

How do you calculate the velocity of the two carts after the collision?

After the collision, the combined (vector sums, use correct signs) of the two carts’ momentum must equal the incoming momentum. Since you have the mass and velocity of one of the two cars, and the mass of the other, you should be able to find the missing velocity: p = mrivri = mrfvrf + mbfvbf.

What is the work on gravity if an object is moving horizontally?

Force of gravity acts vertically downward, while the body is move horizontally. Thus, the force of gravity is not causing the motion. So, the work done by the force of gravity is zero.

Can mass cause moving objects to change direction?

If the forces are not balanced then the motion of the object changes. It may speed up, slow down and/or change direction. For a given force, an object with a small ma​ss will experience a greater change in motion than an object with a larger mass.

What is the formula for final velocity for collision?

v ′ = m 1 v 1 + m 2 v 2 m 1 + m 2 , where v’ is the final velocity of the two objects once they move as one unit after the collision, m 1 is the mass of object 1, v 1 is the initial velocity of object 1, m 2 is the mass of object 2, and v 2 is the initial velocity of object 2.

What is the velocity of the 3 kg ball after the collision?

The velocity of the 3 kg ball is 4 m/s after the collision.

What happens if two carts of the same mass and speed collide?

If both carts have the same masses and speeds then they will both come to rest after they hit the Velcro pads. This collision is completely inelastic: all the kinetic energy disappears. It is hardly necessary to do any mathematical analysis to understand the outcome.

What is the work done on a frictionless surface?

The work done against the gravity when a body is move horizontally along a frictionless surface is zero as the force of gravity acts perpendicular to the direction of motion.

Why does gravity not affect horizontal velocity?

However, the presence of gravity does not affect the horizontal motion of the projectile. The force of gravity acts downward and is unable to alter the horizontal motion. There must be a horizontal force to cause a horizontal acceleration. (And we know that there is only a vertical force acting upon projectiles.)

What is the force of attraction between two masses?

Gravitational force -an attractive force that exists between all objects with mass; an object with mass attracts another object with mass; the magnitude of the force is directly proportional to the masses of the two objects and inversely proportional to the square of the distance between the two objects.

What is the force on a particle of mass M placed on a smooth horizontal surface?

The force on a particle of mass m placed on smooth horizontal surface is F= ( 2 x 2 − 4 ) N directed along X- axis. The particle is projected with minimum speed from x=-2 towards mean position along X-axis for crossing the origin, then the kinetic energy at.

Does mass of the object affect horizontal displacement?

The vertical motion depends on the acceleration of free fall, whereas the horizontal motion depends on the horizontal velocity and time of flight. So, the mass does not affect projectile motion.

What is the acceleration of an object in the horizontal direction that is launched horizontally?

Its vertical acceleration is -9.8 m/(s^2) (the acceleration due to gravity) and a projectile (if you’re neglecting air resistance) never has acceleration in the horizontal direction. So in the horizontal direction the acceleration would be 0. Hope this helps!

When an object is moving along the horizontal at constant velocity the net force along the horizontal is zero?

According to Newton’s first law of motion, any object moving at constant velocity has no net external force acting upon it, which means that the sum of the forces acting on the object must be zero. The mathematical way to say that no net external force acts on an object is Fnet= 0 or ΣF=0.