Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
primary 6 | Science
2 Answers Below
Anyone can contribute an answer, even non-tutors.
Please help. Thanks
Date Posted: 4 years ago
Views: 609
See 2 Answers
The answer is option 3.
This is because both loads were dropped at the same height thus the air resistance and gravitational energy will be the same. So, the first and second options are incorrect. Secondly, potential energy does not affect the rate of fall as it is the internal energy of the loads. That’s why, the last option is also wrong. Option 3 is correct as there are holes in the parachute of load Y, this causes lesser surface area and thus it results in lesser force upwards. It is the force upwards that is slowing the rate of fall.
This is because both loads were dropped at the same height thus the air resistance and gravitational energy will be the same. So, the first and second options are incorrect. Secondly, potential energy does not affect the rate of fall as it is the internal energy of the loads. That’s why, the last option is also wrong. Option 3 is correct as there are holes in the parachute of load Y, this causes lesser surface area and thus it results in lesser force upwards. It is the force upwards that is slowing the rate of fall.
I hope it helps you :)
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Hi, I provide 1 to 1 tuition. $60/1.5h. I can cover English, Maths and Science. You may contact me via WhatsApp at 9033 8810. I am an ex-school teacher :)
Date Posted:
3 years ago
360 Tutoring Program