Answer:
Explanation:
Given
Mass of car A
Mass of car B
velocity of cart A=3 m/s
velocity of cart B=-7 m/s
Conserving momentum



Answer:
it is accelerating 14 m/s
Explanation:
Answer:
a) 
b) 
c) 
d) 
Explanation:
a) The initial vertical velocity is given by:

Where:
θ: 25°
v: is the magnitude of the speed = 23 m/s

b) The initial horizontal velocity can be calculated as follows:

c) The flight time can be calculated using the following equation:

Where:
x: is the total distance = 42 m

d) The maximum height is given by:
Where:
: is the final vertical velocity =0 (at the maximum heigth)
g: is the gravity = 9.81 m/s²
I hope it helps you!