Complete the sentence - AQA - GCSE Physics - Question 1 - 2019 - Paper 1
Question 1
Complete the sentence.
Choose the answer from the box.
The force from the athlete pushing backwards on the starting blocks is __________ the force from the startin... show full transcript
Worked Solution & Example Answer:Complete the sentence - AQA - GCSE Physics - Question 1 - 2019 - Paper 1
Step 1
The force from the athlete pushing backwards on the starting blocks is __________ the force from the starting blocks pushing forwards on the athlete.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
equal to
Step 2
What distance does the athlete travel after the end of the race before stopping?
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Distance = 25 m
Step 3
Calculate the average speed of the athlete between the start and finish of the 100 metre race.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
To calculate average speed, use the formula:
v_{avg} = \frac{d}{t}$$
Given that the distance d is 100 meters and time t is approximately 8 seconds, we find:
v_{avg} = \frac{100}{8} = 12.5 , m/s$$
Step 4
What is the average running speed of a typical person in metres per second?
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
To highlight the comparative speed, tick the box for the typical average running speed: