If a man has thrown a stone of mass 600g straight up 5 m in the air in this case what must be the initial velocity? (A) 10 m/s (B 15 m/s c) 5 m/s D) 7 m/s
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- The block of mass m = 2 kg is released from the rest on the incline. If 0 = 15°, what is the velocity of the block 2 seconds after release? Ms = 0.3, k = 0.20 1.288 m/s 3.084 m/s 2.511 m/s m 0 ӨA student pushes a 12-kg block on a frictionless, horizontal surface. If the block is initially at rest, what is the speed of the block after the student pushes the block for 5 seconds with an acceleration of 2.0 m/s/s? O 2.0 m/s 6.0 m/s 10 m/s 60 m/s1. A pitcher throws a baseball with mass 0.2 kg straight upward with an initial speed of 20.0 m/s. Calculate the speed (in m/s) of the baseball at a height of 15.0 m above the pitcher’s hand.
- A 15 g bullet is shot vertically into an 2.10 kg block and does not exit. The block lifts upward 8.0 mm (see the figure). How fast was the the bullet going before it collided with the block? Ignore the effects of air resistance. Give your answer in m/s to three significant figures.A tired cyclist on a bicycle (102.0 kg combined) starts with an initial velocity of 15.0 m/s at the bottom of a hill and coasts up the hill. He comes to a stop just at the top of the hill. What is the maximum height of the hill?A hockey puck is hit by a stick and slides off at an initial speed of 0.5 m/s. Assuming that the ice is frictionless, what is the speed of the puck after 1s?
- You throw a ball up with the initial velocity 2.5 m/s. What is the velocity of that ball when it reaches the half of the maximum height? The mass of the ball is 0.340 kg.A 400 kg rocket sled is coasting at 20 m/s. It then turns on its rocket engines for 4.0 s, with a thrust of 800 N. What is its final speed? А. 30m/s В. 25m/s C. 18m/s D. 28m/s E. None of the aboveA 500kg car moving to the north at 45m/s crashes head-on into a 600kg car that is moving the south at 23m/s. When they crash, they stick together. At what velocity do the two cars move after the collision?
- A "happy ball" was dropped from an initial height of 1m as it bounced back up to a maximum height of .58 meters. When a "sad ball" was dropped from an initial height of 1m, the ball didnt bounce. Both balls have a mass of 9.5 grams. Can you please help me calculate the velocity of the "happy ball" just before and after hitting the ground using kinematics equations? Thank you in advance.A 0.50 kg ball is thrown up into the air with an initial speed of 9.0 m/s. What is the maximum height of the ball?A 52 kg cart rolls down a 5.0 meter tall hill. What is the velocity of the cart at the bottom of the hill? (neglect friction) Group of answer choices 8.8 m/s 9.9 m/s 7.9 m/s 8.2 m/s 7.4 m/s PreviousNext