50 km/h = 50000 m/3600 second
= 129/5 m/s
= 25.8 m/s
129/5 = 5/s
129s = 25
s = 25/129 seconds or approx .2 seconds
brace yourself, you are going to hit it
Your second question makes no sense.
Whoever made it up is poor in geography.
Buffalo is in the US, Niagara Falls is in Canada. (There is a
Niagara Falls, NY, with about half the population of the Canadian city)
Toronto and Ajax are both on the north side of Lake Ontario in Canada, just google it. So how can they meet ???
third question
velocity in freefall = -9.8t^2 , t in seconds, velocity in m/s
velo. = 1.75(-9.8) or -17.15 m/s
The negative shows the direction of the fall
distance in freefall = 4.9t^2
so after 1.75 s it has fallen 4.9(1.75)^2 = 15 m
so distance above the ground = 110-15 = 85 m
The speed limit on suburban roads is 50 km/h. You are traveling at the limit when an empty bag blows onto the road from behind a parked car 5.0m in front of you. If you maintain your speed how long will it be before you hit?
Niagara Falls is about 50.0 km from Buffalo. A freight train starts out from Buffalo for Niagara Falls at 50.0 km/h. At the same time, a passenger train leaves Toronto for Ajax at 75 km/h. How much time passes before they meet one another, in minutes?
What is the speed of a water bomb after 1.75 s if it is released from rest at a height of 110m above the ground and how high off the ground is the ball?
Can you show your work as well?
1 answer