Answer:
E ) The horizontal component of a projectile acceleration is zero.
Explanation:
In case of a projectile , force of gravity acts in vertically downward direction so acceleration will act in vertically downward direction . Its direction never changes during course of its journey. So horizontal component of acceleration will always be zero at all points of its journey.
Answer:
200 m
Explanation:
Both Jerry and Tom start at the end of the pipe where the cheese is. Jerry then runs into the pipe at 20 m/s while Tom chases him at 10 m/s. When Jerry reaches the other end of the pipe, where Tom's cousin is, he turns around. Eventually, he reaches Tom again, so he turns around again. This continues until both Tom and Jerry reach the end of the pipe where Tom's cousin is.
We need to find the distance traveled by Jerry. We already know Jerry's speed, so we just need to find the time. We can do that using Tom's speed and the length of the pipe.
x = vt
100 m = (10 m/s) t
t = 10 s
So both Tom and Jerry run for 10 seconds. Since Jerry runs at a speed of 20 m/s, the distance he travels is:
x = vt
x = (20 m/s) (10 s)
x = 200 m
Jerry runs a distance of 200 meters.
Speed=distanse/time
144/12=12
ans is 12m/s
Here in all such collision type question we can use momentum conservation as we can see that there is no external force on this system
as we know that
now from above equation we have
so the speed of combined system is 2 m/s
Answer:
Seahawks
Explanation:
THEY ARE THE BEST TEAM!!!
