A clod of dirt falls from the bed of a moving thick. It strikes the ground directly below the end of the truck. (a) What is the direction of its velocity relative to the truck just before it hits?
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- 3. A cannon on Earth (located at the origin) launches a projectile, of mass m, horizontally at height y = 0 m with speed vo, as shown in the figure below: y (m) ↑ x (m) Fw There is a strong wind that imparts a force with constant magnitude Fw, in the negative x-direction, on the projectile as it is airborne. VoA boat that can travel at 2.50 m/s in still water is heading directly across a river that is flowing at a rate of 1.25 m/s, i.e., so that it will end up downstream. (a) What is the velocity of the boat as measured by a person standing on the shore? Give both the magnitude and the angle. (b) If the river is 175 m across, how long does it take the boat to cross the river and in this time how far down stream will the boat have traveled? (c) Provide a diagram of the situation.a) If Billy-Joe kicks a stone with a horizontal velocity of 3.50 m/s, and it lands in the water a horizontal distance of 5.40 m from where Billy-Joe is standing, what is the height of the bridge? b) If the stone had been kicked harder, how would this affect the time it would take to fall?
- A cannon ball is fired with a velocity of 300 m/s at an angle of 10° with respect to the ground. How long will the cannonball fly through the air? (Ignore the height of the cannon and assume the cannon ball is fired from ground level.)A football quarterback is moving straight backward at a speed of 2.00 m/s when he throws a pass to a player 18.0 m straight downfield. (a) If the ball is thrown at an angle of 25° relative to the ground and is caught at the same height as it is released, what is its initial speed relative to the ground? (b) How long does it take to get to the receiver? (c) What is its maximum height above its point of release?As a projectile moves in its path, is there any point along the path where the velocity and acceleration vectors are parallel to each other? ( assume the object is thrown upward and forward, but not straight up.)
- A ball is kicked with an initial velocity of 11 m/s in the horizontal direction and 14 m/s in the vertical direction. (a) At what speed (in m/s) does the ball hit the ground?A ball is projected horizontally from a tabletop and lands on the floor 1.05m below at a distance of 2.07m away from the table. What is the ball's initial speed, in m/s?A boat heads directly accross a river 220 m wide. it takes it 570 seconds to cross, but it ends up 100 m downstream. what its peed relative to the water? that is how fast is the boat?