s. In the previous problem, if the ball hits the ground 4.4 seconds later, how high...
A ball is thrown upward at 15.73 m/s and hits the ground 5.0 seconds later, how high is the tower it’s thrown from?
。LIhree vectors are shown in the Figure. Their magnitudes are given in arbitrary units. Determine the sum of the three vectors, Give the resultant in terms of (a) components, (b) magnitude and angle with the positive x-axis. (c) express the resultant ve ctor in terms of the standard unit vectors. (A = 44.0) 28.0° 56.0 C (C= 31.0) 1 12 ond 13
6. A projectile is fired from ground level, and 10 seconds later hits a target 374 m away and 45 m above the ground. What were the initial velocity and launch angle? 7. The horizontal velocity of a projectile is assumed constant, vx vo cos Bo. The vertical velocity of the ball can be written as a function of time, vy(t)- vo sin 8o + ayt, where the acceleration ay in the y-direction is assumed constant. a. Set the origin...
6. You throw a ball out of a window at 4 m/s at a downward 30° angle. As a result, it takes 1.5 seconds for the ball to hit the ground. 30 A. How far does this ball travel horizontally before hitting the ground? (5.2 m) B. How high is this window from the ground? C. What is the velocity of this ball just before it hits the ground? Report your answer using components, or calculate the magnitude and direction.
If a ball is thrown upward from a building 30 m tall and the ball has a vertical velocity of 25 m/s, then its approximate height above the ground t seconds later is given by h(t) = 30 + 25t - 5t^2 a. After how many seconds does the ball hit the ground? b. What is the domain of h? c. How high does the ball go?
Problem number 8,14,&20.
11. A softball player hits the ball and starts running toward first 21. I Which of the following moti base. Draw a motion diagram, using the particle model, show- ing her velocity vectors during the first few seconds of her run. diagram of Figure Q1.21? A. An ice skater gliding acros B. An airplane braking to a s C. A ear pulling away from a D. A pool ball bouncing off 12. A child is sledding on...
04. A 0.095 kg aluminum sphere is dropped from the roof of a 55-m-high building. If 65% of the O. thermal energy produced when it hits the ground is absorbed by the sphere, What is its temperature increase? What is the sphere's original volume? Assume the sphere is solid. What is the sphere's increase in volume? el Vector V is 6.6 units long and points along the negative x axis. Vector /2 is 8.5 units long and points at-55 degrees...
you are given 4 vectors with equal magnitudes. under what conditions will their sum be zero? if a vector has an equal, positive x and y components, what are the angles it makes with the axes? A superhero jumped horizontally from a 31 m high rooftop to the ground immediately after he spotted a child walking towards a busy street all alone. Fortunately, he lands on the street just next to the child in 2.5s and the child is rescued!...
Q3. On mountainous downhill roads, escape routes are sometimes placed on the side of the road for trucks whose brakes might fail. Assuming a constant upward slope of 26, calculate the horizontal and vertical components of the acceleration of a truck that slowed from 110 kms to rest in 7.0 seconds 04 A 0.095 kg aluminum sphere is dropped frorn the roofof a 55-m-high building. If 65% of the thermal energy produced when it hits the ground is absorbed by...
I need the answers with steps please!
10. A boy throws a ball with an initial velocity of 25 m/s at an angle of 30° above the horizontal. If air resistance is negligible, how high above the projection point is the ball after 2.0s? How long is it in the air, and how far does it go before hitting the ground? 11. A projectile leaves the ground at 150 m/s and reaches a maximum height of 0.57 km. If there...