Q8: The 450-kg ram of a pile driver falls 1.4 m from rest and strikes the top of a 240-kg pile embedded 0.9 m in the ground. Upon impact the ram is seen to move with the pile with no noticeable rebound. Determine the velocity u of the pile and ram imme- diately after impact. Can you justify using the principle of conservation of momentum even though the weights act during the impact? | Ans: v = 3.42 m/s 14 m www 09m

A 0.5 kg mass is projected up a long 25° inclined plane with an initial speed of 4.5 m/sec. The block/surface have coefficient of kinetic friction 0.3 and coefficient of static friction 0.32. 1)What is the magnitude of the acceleration of the block as it moves upward? 2) How far up the slope does the block go before it comes to rest? H- 0.300 4= 0.320 4.50 m/s 0.500 kg 25.0°

A projectile (m, = 77 g) traveling at v = 585 m/s strikes and becomes embedded in the block (m, = 33 kg), which is initially stationary. Compute the energy lost during the impact. Express your answer as an absolute value JAE| and as a percentage n of the original system energy E. Answers: JAE| = J n = %

A spherical bowling ball with mass m = 4.6 kg and radius R = 0.105 m is thrown down the lane with an initial speed of v = 9.5 m/s. The coefficient of static friction between the ball and the ground is 0.35 and the coefficient for kinetic friction is μ = 0.3. Once the ball begins to roll without slipping it moves with a constant velocity down the lane. 1) What is the magnitude of the angular acceleration of the bowling ball as it slides down the lane? 2) What is magnitude of the linear acceleration of the bowling ball as it slides down the lane? 3) How long does it take the bowling ball to begin rolling without slipping? 4) Once it begins to roll without slipping, what is the force of friction on the ball?

Plz solve within 30min I vill give definitely upvote and vill give positive feedback

Q6. The two blocks are released from rest. Their masses are ma= 40 kg and mg = 30 kg. The coefficient of friction between block A and the inclined surface are us = 0.2 and uk = 0.15. What is their acceleration? m, = 40 kg A 20° m, = 30 kg H, = 0.20 В Hy = 0.15 Figure Q6

3. The 4 kg box shown in the figure start from rest at t = 0 in which the friction is negligible. Determine the velocity at t = 1 sec when the box moved from its initial position. (m/ sec.) 9.81 N 4 kg 4. In Problem 3, determine the distance that the box moved at the given time. (m)

A 2-kg block travels from the top of a plane inclined 25° with the horizontal compressing a spring at the bottom of the incline with an initial speed of 0.65 m/s. Due to the motion of the block, the spring was compressed by 0.2 meters. The spring has ak of 100 N/m and the coefficient of friction between the block and the incline is 0.40. What is the change in Elastic Potential Energy of the block? O 9.5) O 2.0) O 8.8) O 1.1)

graduate who joined the Navy as a pilot is about to take off in an F-15 (WF15 = 81,000 lb) from an aircraft carrier traveling at VA = 40 mph. The jet is launched from the catapult system (a connection just below the deck that assists the aircraft) with the force (Fcp) vs time curve shown that has points of F₁ = 1,000 lb at t₁ = 2 s and F₂ = 3,000 lb at t₂ = 5 s (the plane will reach the edge of the deck at t₂). The F-15 needs to be traveling at 170 mph to take off. Determine how much constant thrust (FTR) the engines must produce during the launch to reach this speed. F2 F₁ FCP t₁ VA t₂ FTR t (s)

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