two paper screens A and B Are seperated by a distance of 100m A gullet penetrates A and B - Physics - Motion In A Plane

Question

two paper screens A and B Are seperated by a distance of 100m A
gullet penetrates A and B at points P AND Q respectively Where Q is
10 cm below P If bullet is travelling horizontally at the time of
hitting A the velocity of bullet ar A is nearly how much?Help
experts

Swati · Accepted Answer

Let, x=100 m and h=10cm
Using equation of motion we can calculate the time of the motion
as,
h=ut+12gt2
Assuming initial velocity to be zero and g=10 m/s2, we
get,
t=2hgt=2×10 cm10 m/s2t=2×0
1 m10 m/s2t=0 14 s
Now, again using equation of motion as,
x=vtor,v=xt
we get,
v=100 m0 14 sv=707 11 m/s

two paper screens A and B Are seperated by a distance of 100m. A gullet penetrates A and B at points P AND Q respectively. Where Q is 10 cm below P. If bullet is travelling horizontally at the time of hitting A the velocity of bullet ar A is nearly how much?Help experts