A ballistic pendulum consists of a 3.9-kg wooden block originally at rest, 0 = 0°. When a 2-g bullet strikes and becomes embedded in it, it is observed that the block swings upward to a maximum angle of 9=6°. (Eigure 1) gure e 1.25 m 1 of 1 01.25 m ▼ Part A Estimate the speed of the bullet. Express your answer to three significant figures and include the appropriate units. UB= Submit Value Provide Feedback Request Answer Units ?
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Block mass M= 3.9 kg
Bullet mass m= 2 g=0.002 kg
Angle =60
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- I don't understand how my professor simplified this equation. Can you break it down for me in detail, showing each step and then explaining why you did what you did?In a ballistic pendulum an object of mass m is fired with an initial speed v0 at a pendulum bob. The bob has a mass M , which is suspended by a rod of length L and negligible mass. After the collision, the pendulum and object stick together and swing to a maximum angular displacement θ as shown . Part A Find an expression for v0 , the initial speed of the fired object. Express your answer in terms of some or all of the variables m , M , L , and θ and the acceleration due to gravity, g . You did not open hints for this part.At one particular moment, a 19.0 kg toboggan is moving over a horizontal surface of snow at 4.60 m/s. After 7.50 s have elapsed, the toboggan stops. Use a momentum approach to find the magnitude of the average friction force (in N) acting on the toboggan while it was moving. N
- Why is the selected answer wrong? What is the correct answer?A baseball of mass m1 = 0.34 kg is thrown at a concrete block m2 = 7.5 kg. The block has a coefficient of static friction of μs = 0.76 between it and the floor. The ball is in contact with the block for t = 0.105 s while it collides elastically. The force of interaction between the block and the ball is constant for the duration of their collision. Randomized Variables m1 = 0.34 kgm2 = 7.5 kgμs = 0.76t = 0.105 s a. Write an expression for the minimum velocity the ball must have, vmin, to make the block move. b. What is the velocity in m/s?A small, 150 g cart is moving at 1.70 m/s on a frictionless track when it collides with a larger, 5.00 kg cart at rest. After the collision, the small cart recoils at 0.890 m/s. Part A What is the speed of the large cart after the collision? Express your answer with the appropriate units. V= 00 Submit μA Value Request Answer Units ?
- I have attempted the forumlas above multiple times and my answer I am getting for Yg is .0958m. I have entered it as .096, .095, .0958 and each time I am being told answer is wrong. Is there an issue with my calculation?A 26-gg rifle bullet traveling 240 m/sm/s embeds itself in a 3.2-kgkg pendulum hanging on a 2.9-mm-long string, which makes the pendulum swing upward in an arc. a. Determine the vertical component of the pendulum's maximum displacement. Express your answer to two significant figures and include the appropriate units. b. Determine the horizontal component of the pendulum's maximum displacement. Express your answer to two significant figures and include the appropriate units.A world-class sprinter running a 100 m dash was clocked at 5.4 m/s 1.0 s after starting running and at 9.8 m/s 1.5 s later. Part A Determine the ratio of his output powers in these time intervals. Po to 1 P1 to 2.5 15 ΑΣΦ ?
- A 120 g ball moving to the right at 4.2 m/s catches up and collides with a 450 g ball that is moving to the right at 1.2 m/s. Part A If the collision is perfectly elastic, what is the speed of the 120 g ball after the collision? Express your answer to two significant figures and include the appropriate units. ► View Available Hint(s) V1 = Submit Part C μA Value Units ? If the collision is perfectly elastic, what is the speed of the 450 g ball after the collision? Express your answer to two significant figures and include the appropriate units. Review | Constantsd and e pleaseSherlock Holmes is one of the most famous detectives in fiction literature. Even with limited resources to solve crime in the 1800-1900's, Holmes could solve countless mysteries. A carriage was North-bound traveling at a leisurely pace of 5 km/hr. It collided with a Westward-bound speeding carriage and they stuck together, skidding across the dirt at an North-West direction away from the point of collision. What physics law(s) does Sherlock use to solve this mystery? Conservation of Momentum Conservation of Energy Conservation of Angular Momentum Both Conservation of Momentum and Energy OOO O