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Re: Answer This And 2 Others For 10k, Students Only by Nobody: 6:25pm On Aug 03, 2017
femo86:

Seen cheesy
Chai...God bless you ooo..NAGODE BOSS
I'm delighted for you bro.

1 Like

Re: Answer This And 2 Others For 10k, Students Only by galaciousbabe(f): 6:25pm On Aug 03, 2017
femo86:


Start by getting the next answer correctly amd post it first.....Its fastest finger first....abi make I epp you no?? ?

Hahaha....we go share am
This femo86 shebi you're shinnning now na....you will not bless your girl abi. God is watching u oo

1 Like

Re: Answer This And 2 Others For 10k, Students Only by MAIZAMANI(m): 6:25pm On Aug 03, 2017
inschool:

me and you,
And me too o
Re: Answer This And 2 Others For 10k, Students Only by inschool(m): 6:26pm On Aug 03, 2017
femo86:


Seen cheesy

Chai...God bless you ooo..NAGODE BOSS
wow happy for you, hoping to be next sha,
i pray my browser wont fall hand

1 Like

Re: Answer This And 2 Others For 10k, Students Only by inschool(m): 6:28pm On Aug 03, 2017
when is next question sir
Re: Answer This And 2 Others For 10k, Students Only by jnfoage: 6:31pm On Aug 03, 2017
Next question in five minutes.
Re: Answer This And 2 Others For 10k, Students Only by femo86(m): 6:31pm On Aug 03, 2017
Na to dey peep remain now sad sad

Best of luck to you guys.....One love

5 Likes

Re: Answer This And 2 Others For 10k, Students Only by vaiper(m): 6:32pm On Aug 03, 2017
jnfoage:
Next question in five minutes.
OK sir
Re: Answer This And 2 Others For 10k, Students Only by inschool(m): 6:33pm On Aug 03, 2017
femo86:
Na to dey peep remain now sad sad

Best of luck to you guys.....One love
tnx
Re: Answer This And 2 Others For 10k, Students Only by jnfoage: 6:39pm On Aug 03, 2017
A ball is projected obliquely with velocity 49m/s strike the ground at a distance 245m from the point of projection, for how long was the ball in air?
Re: Answer This And 2 Others For 10k, Students Only by Drniyi4u(m): 6:40pm On Aug 03, 2017
jnfoage:
A ball is projected obliquely with velocity 49m/s strike the ground at a distance 245m from the point of projection, for how long was the ball in air?
7.07 secs


Let the angle of projection be  A.   
Range R = 245 m           u = 49 m/s             g = 9.8 m/s

R = u^2 sin2A / g
so  sin2A = R * g/u^2 = 1        => A =45 deg.

Time of flight = R/(u cosA) = 245 *√2 /49 = 5√2 = 7.07 seconds.
Re: Answer This And 2 Others For 10k, Students Only by dejt4u(m): 6:40pm On Aug 03, 2017
jnfoage:
A ball is projected obliquely with velocity 49m/s strike the ground at a distance 245m from the point of projection, for how long was the ball in air?
14 seconds
Re: Answer This And 2 Others For 10k, Students Only by Nobody: 6:40pm On Aug 03, 2017
jnfoage:
A ball is projected obliquely with velocity 49m/s strike the ground at a distance 245m from the point of projection, for how long was the ball in air?
5 secs
Re: Answer This And 2 Others For 10k, Students Only by Endomorph: 6:40pm On Aug 03, 2017
jnfoage:
A ball is projected obliquely with velocity 49m/s strike the ground at a distance 245m from the point of projection, for how long was the ball in air?
7.0 seconds
Re: Answer This And 2 Others For 10k, Students Only by galaciousbabe(f): 6:40pm On Aug 03, 2017
jnfoage:
A ball is projected obliquely with velocity 49m/s strike the ground at a distance 245m from the point of projection, for how long was the ball in air?
7.07
Re: Answer This And 2 Others For 10k, Students Only by MAIZAMANI(m): 6:40pm On Aug 03, 2017
jnfoage:
A ball is projected obliquely with velocity 49m/s strike the ground at a distance 245m from the point of projection, for how long was the ball in air?
7.07 sec
Re: Answer This And 2 Others For 10k, Students Only by jnfoage: 6:41pm On Aug 03, 2017
dejt4u:
5seconds

Not accurately, but I give it to you.

Modified:

Sorry, you are wrong
Re: Answer This And 2 Others For 10k, Students Only by vaiper(m): 6:41pm On Aug 03, 2017
T=√2H÷g ( time of flight formula)
T=√2×245÷9.8m/s
=√490÷9.8=√50
=7.07seconds

1 Like

Re: Answer This And 2 Others For 10k, Students Only by femo86(m): 6:41pm On Aug 03, 2017
jnfoage:
A ball is projected obliquely with velocity 49m/s strike the ground at a distance 245m from the point of projection, for how long was the ball in air?
Re: Answer This And 2 Others For 10k, Students Only by haftob(m): 6:41pm On Aug 03, 2017
jnfoage:
A ball is projected obliquely with velocity 49m/s strike the ground at a distance 245m from the point of projection, for how long was the ball in air?
5s
Re: Answer This And 2 Others For 10k, Students Only by Otulord(m): 6:42pm On Aug 03, 2017
jnfoage:
A ball is projected obliquely with velocity 49m/s strike the ground at a distance 245m from the point of projection, for how long was the ball in air?
1.57secs
Re: Answer This And 2 Others For 10k, Students Only by inschool(m): 6:42pm On Aug 03, 2017
jnfoage:
A ball is projected obliquely with velocity 49m/s strike the ground at a distance 245m from the point of projection, for how long was the ball in air?
6.99 or 7 sec
Re: Answer This And 2 Others For 10k, Students Only by Nobody: 6:42pm On Aug 03, 2017
-622278
Re: Answer This And 2 Others For 10k, Students Only by Nobody: 6:42pm On Aug 03, 2017
AbbasJR:
-622278
Seriously?

1 Like

Re: Answer This And 2 Others For 10k, Students Only by femo86(m): 6:42pm On Aug 03, 2017
AbbasJR:
-622278

Wetin be dis angry grin

2 Likes

Re: Answer This And 2 Others For 10k, Students Only by jnfoage: 6:43pm On Aug 03, 2017
galaciousbabe:

7.07
Correct.

2 Likes

Re: Answer This And 2 Others For 10k, Students Only by Nobody: 6:43pm On Aug 03, 2017
7.07
Re: Answer This And 2 Others For 10k, Students Only by Nobody: 6:44pm On Aug 03, 2017
Luffy107:
Seriously?
Was a mistake.
Re: Answer This And 2 Others For 10k, Students Only by vaiper(m): 6:44pm On Aug 03, 2017
jnfoage:

Correct.
please sir I got it correct too and answer should be with unit for time else wrong
Re: Answer This And 2 Others For 10k, Students Only by jnfoage: 6:44pm On Aug 03, 2017
Drniyi4u:
7.07 secs


Let the angle of projection be  A.   
Range R = 245 m           u = 49 m/s             g = 9.8 m/s

R = u^2 sin2A / g
so  sin2A = R * g/u^2 = 1        => A =45 deg.

Time of flight = R/(u cosA) = 245 *√2 /49 = 5√2 = 7.07 seconds.
Correct
Re: Answer This And 2 Others For 10k, Students Only by galaciousbabe(f): 6:44pm On Aug 03, 2017
Sir, please who got it
Re: Answer This And 2 Others For 10k, Students Only by inschool(m): 6:44pm On Aug 03, 2017
femo86:


Wetin be dis angry grin
hahahahaha, you are funny

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