General Knowledge - Physics - Discussion
Discussion Forum : Physics - Section 1 (Q.No. 79)
79.
An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is
Discussion:
36 comments Page 3 of 4.
Latha said:
9 years ago
@Tms.
Projectile motion means a particle moves along curved path due to gravity and formula is 1/2gt^2.
Projectile motion means a particle moves along curved path due to gravity and formula is 1/2gt^2.
Latha said:
9 years ago
@S Ramkiran.
Nice explanation, thank you.
Nice explanation, thank you.
JYOTIRNAV said:
9 years ago
Everybody knows oil prices increase day to day because there is a big problem in our society. In our daily life, it is the very important thing. I also think it is time to look at the green resource of energy rather than the depending upon petroleum products. In this way, our country does not make the smart country.
Shanaya said:
9 years ago
How to find out the angle that bomb is making with vertical?
Vinod choudhary said:
9 years ago
Given data-
velocity (v) = 600km/h = (600x1000)/3600.
v = 166.66m/s.
Height (h) = 1960m.
We know that, the second law of motion.
s = ut + 0.5 * a *t * t----> 1
Put the given values in equation (1)
1960 = (0xt)+(0.5xtxt).
t(square) = 1960/0.5
t = 20 sec.
But again we know that velocity = distance/time.
v = d/t,
d = (v) * (t),
d = 20 * 166.66,
d = 3333.2m,
d = 3333.2/1000 = 3.33 km.
Ans. (d) = 3.33 km.
velocity (v) = 600km/h = (600x1000)/3600.
v = 166.66m/s.
Height (h) = 1960m.
We know that, the second law of motion.
s = ut + 0.5 * a *t * t----> 1
Put the given values in equation (1)
1960 = (0xt)+(0.5xtxt).
t(square) = 1960/0.5
t = 20 sec.
But again we know that velocity = distance/time.
v = d/t,
d = (v) * (t),
d = 20 * 166.66,
d = 3333.2m,
d = 3333.2/1000 = 3.33 km.
Ans. (d) = 3.33 km.
Maloni said:
8 years ago
@Vinod.
May I know why didn't you put the value of acceleration while using 2nd law of motion equation.
May I know why didn't you put the value of acceleration while using 2nd law of motion equation.
Bave said:
8 years ago
First. We will change m/s.
Then 600 * 1000/3600 = 166.666m/s.
Next. H=1/2at^2.so 1960=1/2*9.8*t^2.
Then t=20s.
Finally, Use H=ut equation.then H=166.66 * 20.
So 3333.333metres.
So answer 3.33km.
Then 600 * 1000/3600 = 166.666m/s.
Next. H=1/2at^2.so 1960=1/2*9.8*t^2.
Then t=20s.
Finally, Use H=ut equation.then H=166.66 * 20.
So 3333.333metres.
So answer 3.33km.
(1)
Diptikanta sahu said:
8 years ago
What is a projectile of motion?
(1)
Peter smart said:
8 years ago
physics keeps me always in motion
Alhussain said:
7 years ago
Why isn't the time 20secs when we use the formula: V=U+at?
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