An unstoppable object is heading right toward an unmovable object. What's going to happen?
1 answer:
You might be interested in
Answer:
The kinetic energy of the heavier block after the push is equal to the kinetic energy of the lighter block
Explanation:
Kinetic energy of smaller object
where m= mass of smaller object and v= velocity of smaller object
Also, it is given that heavier object is four times the mass of lighter object and consider its velocity as V
kinetic energy of heavier block
Now, For smaller block ,
[by Newtons laws of motion]
Also,
Where S= displacement, F= force, u= initial velocity
So,
For heavier block ,
or,
So,
Therefore the kinetic energy of the heavier block after the push is equal to the kinetic energy of the lighter block
Answer
given,
speed of the basketball player, v_x = 4.75 m/s
height of the jump = ?
a) initial vertical velocity = 0 m/s
final vertical velocity = ?
height, h = 0.75 m
using equation of motion
v² = u² + 2 g h
v² = 0² + 2 x 9.8 x 0.75
v² = 14.7
v = 3.83 m/s
b) let horizontal distance= x m
maximum height at time , t s
time taken to reach maximum height
t = 0.39 s
horizontal distance
= v_x × t
= 4.75 × 0.39
= 1.85 m
horizontal distance is equal to 1.85 m