A 1.7 kg particle moving along the x-axis experiences the force shown in (Eigure 1). The particle's velocity is 4.0 m/s at z = 0 m Y Part A What is its velocity at z = 2 m? Express your answer with the appropriate units. Submit Part B HÅ Value Request Answer Units
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- You drop a ball from a height of 1.8 m , and it bounces back to a height of 1.2 m Part C What is the ball's speed just after the bounce? Express your answer to two significant figures and include the appropriate units. HA ? Vafter = Value Units Submit Request Answer Part D Where did the energy go? O The energy "lost" was changed primarily into thermal energy due to friction. O The energy "lost" was changed primarily into heat energy. The energy "lost" was changed primarily into acoustic energy. O The energy "lost" was changed primarily into chemical energy.A 800 kg cart is rolling to the right at 1.10 m/s. A 70.0 kg man is standing on the right end of the cart. Part A What is the speed of the cart if the man suddenly starts running to the left with a speed of 8.00 m/s relative to the cart? Express your answer with the appropriate units. μA Value Submit Units Request Answer ?Q24. As shown in the image below, the 16-kg block A and the 42-kg block B connected by the weightless, frictionless pulley system are released from rest. Determine the speed of block B when block A has displaced downwards by 0.7 m. Please pay attention: the numbers may change since they are randomized. Your answer must include 3 places after the decimal point, and proper Sl unit. A Answer: d O [o k B
- James (mass 83.0 kg) and Ramon (mass 63.0 kg) are 20.0 m apart on a frozen pond. Midway between them is a mug of their favorite beverage. They pull on the ends of a light rope stretched between them. Ramon pulls on the rope to give himself a speed of 1.10 m/s. Part A What is James's speed? Express your answer with the appropriate units. VJ = Value Unitsd and e pleaseA car has a mass of 1500 kg. If the driver applies the brakes while on a gravel road, the maximum friction force that the tires can provide without skidding is about 7000 N. Part A If the car is moving at 21 m/s, what is the shortest distance in which the car can stop safely? Express your answer with the appropriate units. Ax= μÅ Value Units ****** ?
- A 2.6 kg block is attached to a horizontal rope that exerts a variable force Fx = (20 – 5x) N, where x is in m. The coefficient of kinetic friction between the block and the floor is 0.25. Initially the block is at rest at x = 0 m. Part A What is the block's speed when it has been pulled to x = 0.80 m? V = μĂ Value m S ?q21