A20 kg mass is dropped from a tall rooftop and accelerates at 9.8 m/s2. what is the weight of the dropped object? a) 0 n b) 9.8 n c) 20 n d) 196 n

Abaseball picther can throw a ball at about 90 miles per hour, v = 40 m/s, on solid rock ground. we now put him into space. when he throws the ball, which weighs mb = 0.15 kg moves away from himat the same speed. how long does it take the ball thrown in space to travel the 30 meters to the batter? he weighs mp = 100kg

Amarble, a bowling ball, a basketball, and a baseball are rolling across the floor at 10 m/s. which one has the greatest kinetic energy? the marble the bowling ball the basketball the baseball

Why are graphs useful when interpreting data