Question 1 c)

Question 1 b)

When

the driver pulls on the rope as shown in the diagram, is the approximate

direction of the tension force on the tree?

Question 1 a)

An unlucky driver has become bogged in the mud near a tree. Fortunately,

they find a rope in their car and attach it to the tree and car, and they pull on

the rope as shown in the picture. Also shown is the resulting force diagram,

demonstrating why the technique works: the car experiences a very large force

with a relatively small ‘tug’ applied by the driver.

The

sum of the three forces acting on the centre point of the rope is assumed to be

zero because:

Question 4 d)

True

or false: If Shepard had hit the golf ball with a velocity of 25 m/s with an

angle of 45° to the horizontal, the golf ball would have

travelled further.

Question 4 c)

Ignoring

air resistance, how much

Question 4 a)

On February 6, 1971, Apollo 14 astronaut Alan Shepard

connected his custom-made golf club head attachment to a tool designed

primarily to scoop lunar rock samples. He then hit two golf balls on the

surface of the Moon. The first ball was a bit of a dud, but the second attempt

resulted in a clean stroke, with the ball hit at a speed of 23.5 m/s at an

angle of 40° with

the horizontal. Assume that the free-fall acceleration,

Question 4 b)

How

far horizontally did the golf ball travel? Give your answer to 1 decimal place

in units of m. Write your answer without units i.e., 12.6 m as 12.6.

Question 3 b)

What is the total time the coin is in the air

(from release to hitting the water at the bottom of the well)?

Give your answer to 1 decimal place in

seconds. Write your answer without units i.e., 12.6 s as 12.6.

Question 3 a)

From level with the ground, a coin is tossed straight up

with a speed of 15.0 m/s. When it returns, it falls into a well containing

water 15.0 m below the surface.

What is the coin’s velocity as it hits the water

at the bottom of the well?

Question 2 e)

The

ball’s velocity