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Chapter 1: Q. 12 (page 29)

A speed skater accelerates from rest and then keeps skating at a constant speed. Draw a complete motion diagram of the skater

Short Answer

Expert verified

The motion diagram of the skater is shown

Step by step solution

01

Step 1. Write the given information

The skater first accelerates and then she moves at a constant speed.

In the motion diagram, each dot represents the position of the skater, with respect to time.
The more space between the dots represents the distance covered by the skater in the given time interval is more.

02

Step 2. To draw the motion diagram

The skater starts accelerating first. This implies at point 1, the skater would accelerate toward the right as shown in the figure. Thereafter, the skater would move with constant speed. Thus the acceleration at points 2 and 3 is shown as zero.

The skater accelerates from 0 to 1 towards the right.

The acceleration at points 2 and 3 is zero.

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Most popular questions from this chapter

Problems 49 show a partial motion diagram. For each:

a. Complete the motion diagram by adding acceleration vectors.

b. Write a physics problem for which this is the correct motion

diagram. Be imaginative! Don鈥檛 forget to include enough

information to make the problem complete and to state clearly

what is to be found.

c. Draw a pictorial representation for your problem.

How many significant figures are there in the following

values?

a. 0.05脳10-4 b. 0.00340

c. 7.2脳104 d.103.00

You use a long rubber band to launch a paper wad straight up. Draw a complete motion diagram of the paper wad from the moment you release the stretched rubber band until the paper wad reaches its highest point.

A roof tile falls straight down from a two-story building. It

lands in a swimming pool and settles gently to the bottom. Draw a complete motion diagram of the tile.

For Problem 37, draw a complete pictorial representation. Do not solve these problems or do any mathematics.

You would like to stick a wet spit wad on the ceiling, so you toss it straight up with a speed of 10 m/s. How long does it take to reach the ceiling, 3.0 m above?
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