Answer:
Explanation:
Given
Speed of ball 
Plane is inclined at an angle 
To win the Game we need to hit the target at
away
Launch angle of ball 
Motion of ball can be considered in two planes i.e. Vertical to the plane and horizontal to the plane
So Net acceleration in vertical plane is 
Range of Projectile is given by

for 





so ball must be launched at an angle of 
Answer with Explanation:
We are given that
Mass of one cart,
Mass of second cart,
Initial velocity of one cart,
Initial velocity of second cart,
a.Total momentum,

b.Velocity of second cart,
=0
According to law of conservation of momentum
Initial momentum=Final momentum



Answer:
50.97 m
Explanation:
m = Mass of truck
= Coefficient of static friction = 0.4
v = Final velocity = 0
u = Initial velocity = 72 km/h = 
s = Displacement
Force applied

Frictional force

Now these forces act opposite to each other so are equal. This is valid for the case when the load does not slide

Since the obect will be decelerating the acceleration will be 
From the kinematic equations we have

So, the minimum distance at which the car will stop without making the load shift is 50.97 m.
Answer:
B is the answer
Explanation:
thank you I hope it helps you