Mustafah41352
Badges: 2
Rep:
?
#1
Report Thread starter 1 month ago
#1
a ball is hit when it is at a height of 0.400m. it just clears the tennis net, travelling horrizontally and then lands on the ground at a distance of 11.9m from the net.
(a) show that the horizontal component of velocity of the ball is about 30ms

i just simply dont know what to do
Attached files
Last edited by Mustafah41352; 1 month ago
0
reply
Muttley79
Badges: 20
Rep:
?
#2
Report 1 month ago
#2
(Original post by Mustafah41352)
a ball is hit when it is at a height of 0.400m. it just clears the tennis net, travelling horrizontally and then lands on the ground at a distance of 11.9m from the net.
(a) show that the horizontal component of velocity of the ball is about 30ms

i just simply dont know what to do
Use SUVAT and the information ....

You need to attempt the question before we can help
0
reply
Mustafah41352
Badges: 2
Rep:
?
#3
Report Thread starter 1 month ago
#3
(Original post by Muttley79)
Use SUVAT and the information ....

You need to attempt the question before we can help
i dont know where to start.
the most i can do is S=11.9 U=0 a=9.8. im dont really understant at all.
Last edited by Mustafah41352; 1 month ago
0
reply
Muttley79
Badges: 20
Rep:
?
#4
Report 1 month ago
#4
(Original post by Mustafah41352)
i dont know where to start.
the most i can do is S=11.9 U=0 a=0. im dont really understant at all.
And vertically?
0
reply
Mustafah41352
Badges: 2
Rep:
?
#5
Report Thread starter 1 month ago
#5
(Original post by Muttley79)
And vertically?
so vertically would be 0.91-0.4=0.51
0
reply
Muttley79
Badges: 20
Rep:
?
#6
Report 1 month ago
#6
(Original post by Mustafah41352)
so vertically would be 0.91-0.4=0.51
Why is u= 0 btw?

Where do these numbers come from? What is u and a ?
0
reply
Fareeha18
Badges: 11
Rep:
?
#7
Report 1 month ago
#7
(Original post by Muttley79)
Why is u= 0 btw?

Where do these numbers come from? What is u and a ?
i guess they are assuming the value of a and u.well shouldn't we use Fcostheta to find the horizontal component?
0
reply
Mustafah41352
Badges: 2
Rep:
?
#8
Report Thread starter 1 month ago
#8
(Original post by Muttley79)
Why is u= 0 btw?

Where do these numbers come from? What is u and a ?
u is initial velocity, but i dont know how to get that, and a is acceleration but since im finding the horizontal it is 0?
0
reply
Muttley79
Badges: 20
Rep:
?
#9
Report 1 month ago
#9
(Original post by Fareeha18)
i guess they are assuming the value of a and u.well shouldn't we use Fcostheta to find the horizontal component?
We only need to show the horiz component 'is about 30' so I would just call it 'u'
0
reply
Muttley79
Badges: 20
Rep:
?
#10
Report 1 month ago
#10
(Original post by Mustafah41352)
u is initial velocity, but i dont know how to get that, and a is acceleration but since im finding the horizontal it is 0?
I've done the question - have you now?
0
reply
Mustafah41352
Badges: 2
Rep:
?
#11
Report Thread starter 1 month ago
#11
(Original post by Muttley79)
I've done the question - have you now?
i think so, so S=0.91 U=0 a=9.8 put into s=ut+1/2 a t^2 t=0.43 then v=d/t to get 27.
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

How would you feel if uni students needed to be double vaccinated to start in Autumn?

I'd feel reassured about my own health (30)
15.71%
I'd feel reassured my learning may be less disrupted by isolations/lockdowns (60)
31.41%
I'd feel less anxious about being around large groups (23)
12.04%
I don't mind if others are vaccinated or not (16)
8.38%
I'm concerned it may disadvantage some students (10)
5.24%
I think it's an unfair expectation (49)
25.65%
Something else (tell us in the thread) (3)
1.57%

Watched Threads

View All