Answer:
0.992 m
Explanation:
x = (horizontal vi)t + (1/2)at²
18 = (40)t + 0
t = 0.45 s
y = (vertical vi)t + (1/2)gt²
y = 0 + (1/2)(9.8)(0.45)²
y = 0.992 m
Answer:
Explanation:
Let the hails are coming down with speed "v" and then rebound with the same speed in opposite direction
So here the change in the momentum of the hails is given as
now we know by Newton's 2nd Law
here we have
now plug in all data
2nd egg experienced more impulse
Hope this helps! :)
Answer:
4N
Explanation:
a = (7-3)/5 = 0.8m/s^2
F = ma = (5)(0.8) = 4 Newtons
Answer:
The last option, 20 N and 2.04 kg
Explanation:
work = (force)(distance)
work = 120 joules
distance: 6 m
rearrange to find force:
120=(6)F
F= 120/6 = 20 Newtons.
Assuming its lifted from Earth's surface, the force of gravity will be 9.81 m/s^2. Let's find mass:
F=mg
m=F/g
m=(20)/(9.81)= 2.038 kg
