How can a planet be made of ice but also always be on fire?
the speed indicated on your car's speedometer.
it tells nothing about what your speed was 1 second, 1 minute, or 1 hour ago, or what speed you've been averaging for the past 3 minutes. it only tells you what your speed is right now.
it was an online database of dna records that was used by geneologists and law enforcement (choice a), but it was shut down last year and is no longer available to them.
now go make bloom happy.
when ball will reach to highest point then it's speed will become zero
so we can use kinematics to find the time
for finding the maximum height we can use another kinematics equation
so it will rise to 1.12 m from the point of projection
ball will take double the time which it take to reach the top point.
so here the time to reach the top is 2.23 s
so time taken by the ball to reach at same point after projection is given as
since ball have reached to same point so the final velocity must be same as initial velocity
so we have
when ball reached to the bottom
displacement of ball = -51.6 m
now by kinematics we have
by solving above equation we have
now for the velocity at that instant we have
so its velocity is 38.6 m/s downwards
for the position of ball at t = 5.35 s we can use
so it is 23.1 m below the initial position from which it is thrown
now for the velocity we can say
so it will be moving downwards with speed 30.53 m/s
since the car is going 10m/s already just put that aside.
accelerating at a rate of 3m/s for 4 seconds
12+10= 22m/s is the final velocity