i really don't know anything this is my first encounter with physics and my ta is behind and I haven't learned much to do these which is why I am so stranded !
Kinematics Problem!
A cheetah can accelerate from rest to 26.0 m/s in 2.18 s. Assuming the acceleration is constant over the time interval, what is the magnitude of the acceleration of the cheetah?
ANSWER=1.91x10^1m/s^2
What is the distance traveled by the cheetah in these 2.18 s...
The block shown in figure below lies on a smooth plane tilted at an angle theta = 23.7o to the horizontal.
A) Determine the acceleration of the block as it slides down the plane. Ignore friction.
B) If the block starts from rest x = 9.87 m up the plane from its base, what will be the...
A) In a cathode ray tube, electrons are accelerated from rest by a constant electric force of magnitude 6.22 x 10−17 N during the first 2.00 cm of tube's length; then they move at essentially constant velocity another 46.5 cm before hitting the screen. Find the speed of the electrons when they...
Kinematics Model Rocket problem !
A) A model rocket is launched straight upward with an initial speed of 49.6 m/s. It accelerates with a constant upward acceleration of 1.83 m/s2 until its engines stop at an altitude of 155 m. What is the maximum height reached by the rocket?
B) How long...
A) It takes 2.80 s for a small ball with a mass of 0.040 kg released from rest from a tall building to reach the ground. Calculate the height from which the ball is released.
B)If that ball had been released from the same height, but this time above the surface of the moon, how long would it...