Answer: x= 4.761 m/s
t=0.786 sec
Explanation: In a projectile motion (or 2D motion), the object is launched with an initial angle and an initial velocity
The components of the velocity are
<em>The magnitude, which is the speed, and the direction in which the motion is happening.</em>
Similarly the displacement has the components
The last formula is valid only if the object is launched at ground level, as our frog does.
There are two times where the value of y is zero, when t=0 (at launching time) and when it lands back from the air. We need to find that time t by making y=0
Dividing by t (assuming t different from zero)
Then we find the total flight as
Replacing this time in the formula of x
We can solve for
Knowing that x=2.20 m and °
We now compute t
Velocity = displacement / time
Here, displacement = 450 - 150 = 300 m towards south
t = 600 s
Substitute their values,
v = 300/600
v = 0.5 m/s towards south
Hope this helps!
Answer:
1. Mass and Velocity
2.The speed of the particles increases.
Explanation:
Answer:0.29
Explanation:
Given
Car 1 has 7 times the mass of car 2
but 0.6 times the kinetic energy of car 2
suppose car 2 has the mass m and 
be the velocity
then car 1 has a mass of 7 m
Kinetic Energy of car 1
Kinetic energy of car 2
divide 1 and 2 we get
