### Determine the speed of the ball

Assignment Help Physics
##### Reference no: EM139201

Q1. David is driving a steady 21.0 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70 at the instant when David passes. How far does Tina drive before passing David?

What is her speed as she passes him?

Q2. A ball of mass 0.188 kg is dropped from a height 3.45 m above the ground.

The acceleration of gravity is 9.8 m/s2.

Neglecting air resistance, determine the speed of the ball when it is at the height 0.684 m above the ground.

Respond in units of m/s

#### Questions Cloud

 What was miss muffet''s stash in the units : Two speakers, one directly behind the other, are each generating a 374-Hz sound wave. What is the smallest parting distance between the speakers that will generate destructive interference at a listener standing in front of them? Take the speed of so.. What friction torque is essential to decrease : In a car lift, the output plunger has a radius of 9cm. the weight of the plunger and the car is 21600N. What is the gauge pressure of the hydraulic oil used in the operating lift. Compute the total time from launch till projectile : A projectile is launched from the top of a cliff above level ground. At launch the projectile is 35 meters above the base of the cliff and has the velocity of 50 meters per second at an angle 37° with horizontal. Air resistance is negligible. What is the mass of copper block : A copper block is removed from a 300^0 C oven and dropped into 1 L of water at 20.0^0 C. The water quickly reaches 25.5^0 C and after that remains at that temperature. What is the mass of copper block. Determine the speed of the ball : David is driving a steady 21.0 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70 at the instant when David passes. How far does Tina drive before passing David. The positive charges in each hand were unbalanced : A 1.65 block is attached to a spring with spring constant 17. While the block is sitting at rest, a student hits it with the hammer and almost instantaneously gives it a speed of 59. Find work she does on the flight bag : A flight attendant pulls her 73 N flight bag a distance of 245 m along a level airport floor at a constant velocity. The force she exerts is 45 N at an angle of 54° above the horizontal. What was an initial speed of the proton : The magnitude of the vector is 45.0 units and points in the direction 386 counter clockwise from the positive x-axis. Calculate the x-component of this vector. Conclude the electric flux through the bottom of the car : Intuitively, the man will not catch the bus unless he is running fast enough. In mathematical terms, there is a constraint on the man's speed so that the equation above gives a solution for that is a real positive number.

### Write a Review

#### What tension is necessary to tune string properly

What tension is necessary to tune string properly

#### What is distance of a sample of blood from the rotation axis

What is distance of a sample of blood from the rotation axis

#### Evaluate the stability of of na in the nacl structure

Evaluate the stability of of Na in the NaCl structure

#### Compute an inductance of the sensor for air gaps

Compute an inductance of the sensor for air gaps

#### Find out the mass of the object

A 2500-kg sport utility vehicle travelling at 92 km/h can be stopped in 0.25 s if it hits a concrete wall. Assume a 60 kg person was in the car that hit this wall. The velocity of the person equals that of the car both before and after the crash, and..

#### What is the ratio of the speed of boat a

The resistance of a copper wire of length L meter is 0.1 ohms. If the diameter of the wire is 0.045cm, find out its specific resistance.

#### What will be the electric potential of a point

A 0.12-kg ball is placed in a shallow wedge with an opening angle of 120°, as shown in the figure. For each contact point between the wedge and the ball, determine the force exerted on the ball. Assume the system is frictionless. Find contact force o..

#### Compute average magnetic flux through turn of inner solenoid

Compute average magnetic flux through turn of inner solenoid

#### What is its speed as it hits the ground

A 3.10-m-long, 310 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 73.0 kg construction worker stands at the far end of the beam. What is the magnitude of torque abou..

#### What is the stopping distance

If the coefficient of friction between road and tires on a rainy day is 0.120, what is the minimum distance in which the car will stop.

#### What is the net electric flux through the spherical surface

What is the net electric flux through the spherical surface

#### What is new angular speed of the merry-go-round

What is new angular speed of the merry-go-round