# A baseball outfielder throws a 0.150-kg baseball at a speed of 40.0 m/s and an initial angle of…

A baseball outfielder throws a 0.150-kg baseball at a speed of 40.0 m/s and an initial angle of 30.0. What is the kinetic energy of the baseball at the highest point of its trajectory? The spring constant of a cars suspension spring increases with increasing load due to a spring coil that is widest at the bottom, smoothly tapering to a smaller diameter near the top. The result is a softer ride on normal road surfaces from the wider coils, but the car does not bottom out on bumps because when the lower coils collapse, the stiffer coils near the top absorb the load. For a tapered spiral

A baseball outfielder throws a 0.150-kg baseball at a speed of 40.0 m/s and an initial angle of 30.0. What is the kinetic energy of the baseball at the highest point of its trajectory? The spring constant of a cars suspension spring increases with increasing load due to a spring coil that is widest at the bottom, smoothly tapering to a smaller diameter near the top. The result is a softer ride on normal road surfaces from the wider coils, but the car does not bottom out on bumps because when the lower coils collapse, the stiffer coils near the top absorb the load. For a tapered spiral spring that compresses 12.9 cm with a 1 000-N load and 31.5 cm with a 5 000-N load (a) evaluate the constants a and b in the empirical equation F = ax b and (b) find the work needed to compress the spring 25.0 cm.

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