Answer:
Explanation:
r=A(1 m/s)t^i+A((1 m/s3)t3−6(1 m/s2)t2)^j,
dr / dt = A i + (3 A t² - 6 x 2 t ) j
At t = 2
dr / dt = A i + (12A - 24 A ) j = A i - 12 A j .
Since slope is negative so velocity is downwards , hence it is descending
b ) velocity = dr / dr = . A i + (3 A t² - 6 x 2 t ) j
Vx = A
Vy = 3A t² - 12 t
Answer:
false im just trying to get it if you'd like to give it to me
Answer:
The answer is the 3rd option!
Answer:
the correct answer is B
Explanation:
thermal energy makes heat increase.
Answer:
Height of the building = 11.4 m
Explanation:
As we know that the stone is projected at an angle 46 degree with speed 8.65 m/s
so the two components of the speed is given as


vertical component of the speed is given as


now we know that the ball strike at horizontal distance of 13.7 m
so we will have



now we know that in vertical direction ball will move under uniform gravity so we can use kinematics



Height of the building = 11.4 m