Um tbh i failed school so hahah
Answer:
Explanation:
As we know that the speed of the rocket is v1 and v2 at the bottom and top of the window
then we will have
also we know that
now we have
also we have
now if the sill of the window is at height 8 m from the ground then we have
Answer:
speed = distance/time so v = 100/50 m/sec = 2 m/sec.
D = 2T ⇐formula for distance, in meters, for trip duration in T seconds, ASSUMING CONSTANT SPEED.
Answer: distance = 24 meters
Explanation:
speed = distance / time
distance = speed x time
speed = 160 cm/s = 1.6 m /s [ 100 cm = 1 m, 160 cm = 1.6 m ]
time = 15 s
distance = 1.6 m/s x 15 s = 24 m
Answer:
-200 N
Explanation:
The cabinet moves at constant velocity, so that means there's no acceleration.
Applying Newton's second law to the cabinet:
∑F = ma
F + 200 = 0
F = -200
The friction force is 200 N in the opposite direction.
