A baseball player hits a 95 mph fastball with 900 g bat, resulting in a home run

Question

A baseball player hits a 95 mph fastball with 900 g bat, resulting in a home run. If the basebell hasa mass of 2. 141 g, which of the following properly describes the force interactions between the b the ball? (a) The bat applied a larger force on the ball, since the bat is more masive (b) The ball applied a larger force on the bat, since the ball is less massive. (c) The bat and ball both applied the same amount of force on each other. (d) You need the speed of the actions between the bat and bat to conclusively answer 3. A proton (m-1.67 × 10-27 kg) that has a speed of 50x 10° m/s passes through a metal fin thickness 0.010 mm and emerges with a speed of 2.0 x 109 m/s. How large of a foroe aeted on te through a metal 5m o proton as it passed through the film? (a) 1.8 × 10-9 N (b) 7.5×10-10 N (c) 3.3 × 10-10 N (d) 3.5× 10-11 N 4. Vector i-3-8 j and vector 1-52j. The dot product of B . A is given by: (a) 8-63. 1. (c) 15i-163 5. A spring toy fires a plastic ball vertically upwards. For a given compression , the ball reaches a height of h. Ignoring friction and drag, if the same spring is compressed twice as much (2Ae),bow high will the ball reach (in terms of h)? a. (b) 2h (c) 4h (d) h/2 6. The astronauts in the International Space Station float around in their environment, along with a and all equipment that is not securely fastened. This is because: (a) They have no weight in space. (b) They are in a constant state of free fall, so they appear weightless (c) The gravitational pull of the Earth is exactly countered by the gravitational pail of the mooa. (d) The videos are edited by NASA to make space research appear more exciting.

Explanation / Answer

velocity=5*106 m/s

Time to pass through film t = T/V = .01*103/5*106 = 2.0*10-12 sec

Momentum change dP = m*(V1 - V2) = 1.67*10-27*(5*106 - 2*106) = 5.01*10-21 kgm/s

F*t = dP F = dP/t = 5.01*10-21/2.0*10-12

F = 1.8*10-9 N

7.B It is less than 200 and greater than 100

8.D. The tension force acting on the two body are same.

The image is blur. Cant read all questions properly

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