In order for an object of constant mass to be traveling with constant velocity, which of...

In order for an object of constant mass to be traveling with constant velocity, which of the following must be true? a. the net force acting on the mass must be zero b. it’s acceleration is constant c. the net force acting on the mass is greater than zero d. none of the above

Expert Solution

Option (a) is correct.

If the net force acting on the constant mass is zero, then from Newtons second law we have

which implies ,

which in turn implies ,

genius_generous answered 2 years ago

An object of mass m1 approaches with velocity v1 another object of mass m2, which is...

An object of mass m1 approaches with velocity v1 another object of mass m2, which is at rest, next to a spring having force constant k. The spring is fixed to a wall and m2 can compress the spring. This is one-dim horizontal collision without friction. We consider two collision scenarios, one which is perfectly inelastic, and the other which is elastic. (a) In the first collision case the object m1 strikes m2 and sticks. Moving together, they compress the...

An object is initially traveling at a velocity of 12 m/s. It then begins to change...

An object is initially traveling at a velocity of 12 m/s. It then begins to change it’s velocity according to the function ?=2.5?+3? v = 2 . 5 s + 3 a , where v is the velocity of the object, s is the objects position, and a is the acceleration. Determine the velocity of the object 30 meters after the velocity begins to change. (17.5 m/s)

A 6.00kg mass is traveling with a velocity of 2.00m/s to the east, and an 8.00kg...

A 6.00kg mass is traveling with a velocity of 2.00m/s to the east, and an 8.00kg mass is traveling with a velocity of 5.00m/s to the west as shown in the figure. The two masses collide, and after the collision the 8.00kg mass has a velocity of 3.60m/s directed at an angle of 34° west of north. a) What is the velocity of the 6.00kg mass after the collision? b) Was the collision elastic? Show enough work to justify your...

A constant force acts on a 600kg mass for 68s. The velocity of the mass is...

A constant force acts on a 600kg mass for 68s. The velocity of the mass is 10m/s before the force is applied. Its final velocity is 44m/s. What change in momentum does the force produce?

The leader of a bicycle race is traveling with a constant velocity of +11.4 m/s and...

The leader of a bicycle race is traveling with a constant velocity of +11.4 m/s and is 11.6 m ahead of the second-place cyclist. The second-place cyclist has a velocity of +9.90 m/s and an acceleration of +1.20 m/s2. How much time elapses before he catches the leader?

When an object traveling with initial velocity vi increases its velocity to 1.84vi, its momentum increase from...

When an object traveling with initial velocity vi increases its velocity to 1.84vi, its momentum increase from pi to 5.69pi. Question: What was the initial velocity vi in units of c?

An object with a mass of 49.8 pounds is moving with a uniform velocity of 30.9...

An object with a mass of 49.8 pounds is moving with a uniform velocity of 30.9 miles per hour. Calculate the kinetic energy of this object in joules

A speedboat traveling at a constant velocity of 20m/s passes a police boat at rest. The...

A speedboat traveling at a constant velocity of 20m/s passes a police boat at rest. The police boat starts up 8 seconds after the speedboat passes, and accelerates at 2.3m/s^2. When and where does the cop catch the speedboat?

A 100kg mass traveling with a velocity of 15m/s on a horizontal surface strikes a spring...

A 100kg mass traveling with a velocity of 15m/s on a horizontal surface strikes a spring with a spring constant k = 5 N/m a. Find the compression of the spring required to stop the mass if the surface is frictionless b. Find the compression of the spring if the surface is rough (0.4ku=0)

A car of mass 1000kg is traveling in a northward (+y) direction with a constant speed...

A car of mass 1000kg is traveling in a northward (+y) direction with a constant speed of 10m/s. It then hits a stationary truck. The truck is twice as heavy as the car. After the collision, the car travels in a direction 30 degrees East of North and the truck travels 60 degrees West of North. a) What are the final speeds of the car and the truck after collision? b) Calculate the change in kinetic energy of the system...

Question