A body of mass m has initial velocity v0 in the positive x-direction. It is acted on by a constant force F for time t until the velocity becomes zero; the force continues to act on the body until its velocity becomes −v0 in the same amount of time. Write an expression for the total distance the body travels in terms of the variables indicated. (Use any variable or symbol stated above as necessary.)

A body of mass m has initial velocity v0 in the positive x-direction. It is acted on by a constant force F for time t until the velocity becomes zero; the force continues to act on the body until its velocity becomes in the same amount of time. Write an expression for the total distance the body travels in terms of the variables indicated.

Step-by-step solution:

Step 1 of 3

The kinematic equation that provides the relationship between final velocity, initial velocity, acceleration and time is,

Here is the final velocity,is the initial velocity, is the acceleration andis the time .

The kinematic equation that provides the relationship between displacement, initial velocity, acceleration and time is,

Here, is the displacement, is the initial velocity and is the time.

" See This and Solve "

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

no. dot product   =0 when vecs at right angles