# Other : Physics Assignment 2

Kinematics in Two Dimensions; Vectors and Dynamics: Newton’s

Laws of

Motion

A ship has a top speed of 3.0 m/s in calm water. The

current of the ocean

tends to push the boat at 2.0 m/s on a bearing of due South.

What will be the

net velocity of the ship if the captain points his ship on a

bearing of 55

North or West and applies full power?

An airplane is 50,000 m above an observer and 2.1 km to the

west of them and

1.5 km to the north of you. Determine the angle to the plane

in the x y axis

and the total distance to the plane from you. Choose the

x-axis east, y axis

north, and z axis up.

A bullet is fired from at a shooting range. The bullet hits the

ground after

0.32 seconds. How far did it travel horizontally and

vertically in this time if

it was fired at a velocity of 1100 m/s?

A not so brilliant physics students wants to jump from their

3rd floor

apartment window to the swimming pool below. The problem is

the base of the

apartment is 8.00 meters from the pools edge. If the window

is 20.0 meters

high, how fast does the student have to be running

horizontally to make sure

they make it to the pools edge?

If a 1500 kg car stopped from an in 5.6 seconds with an applied

force of

5000 N, how fast was it initially traveling?

If the acceleration due to gravity on the Moon is 1/6 that what

is on the

Earth, what would a 100 kg man weight on the Moon? If a

person tried to simulate

this gravity in an elevator, how fast would it have to

accelerate and in which

direction?

A 7.93 kg box is pulled along a horizontal surface by a force

F_

Pof 84.0 N applied at a 47.0

oangle. If the

coefficient of kinetic friction is 0.35, what is the

acceleration of the box?

If a car is traveling at 50 m/s and then stops over 300 meters

(while

sliding), what is the coefficient of kinetic friction between

the tires of the

car and the road?