John has tied his friend, zory, a stuffed unicorn to a toy car with a massless string whichmakes an angle of 30°. if he rides for 20 m. the weight of the unicorn is 50 n. the toy car exerts a constant force of 20 n and there is a frictional force of 10 n.
a. find the work done on the unicorn by each forces.
b. find the net work done on the unicorn.
c. if the initial velocity was 2m/s, what will be the final velocity?

A

Since the car is moving to the right, the Normal Force is balancing the Weight and the Net Force is 10 N, right.

Explanation:

as the answers says, the only two forces in the y axis are the normal force and the weight, and they balance each other. On the x axis, you have 20N to the right and the friction is a force that opposes the movement, so the 10N are to the left. The net force is 20 - 10 = 10N.

emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50

increase masses, decrease separation