A cart is given an initial velocity of 5.0 m/s and experience a constant acceler

Question

A cart is given an initial velocity of 5.0 m/s and experience a constant acceleration 2. 0 m/s^2. What is the magnitude of the cart's displacing during the first 6.0 a of its motion? 10 m 55 m 66 m 80 m A rock is thrown straight down with an initial velocity of 14.5 m/a from a cliff. What is the rock's displacement after 2.0 a? (acceleration due to gravity is 9.8 m/s^2) 28 m 49 m 55 m 64 m A rock is thrown straight down with an initial velocity of 24.5 m/a from a cliff. What is the rock's displacement after 2.0 a? (acceleration due to gravity is 9.8 m/s^2) 9.8 m 19.6 m 24.5 m 30.6 m when a drag strip vehicle reaches a velocity of 60 m/a, It begins a negative acceleration by releasing a drag chute and applying Its brakes. While reducing its velocity back to zero, Its acceleration along a straight line path is a constant -7.5 m/s^2. What displacement does it undergo during this Declaration period? 40 m 80 m 160 m 240 m A cheetah can run at approximately 100 km/hr and a gazelle at 80 ka/hr. If both animals are running at full speed, with the gazelle 70 m ahead, how long before the cheetah catches its pray? 12.6 s 25.2 s 6.3 s 10.7 s At the top of a cliff 100 m high, Raoul throws a rock upward with velocity 15 m/s. Bow much later should ho drop a second rock from rest so both rocks arrive simultaneously at the bottom of the cliff? 5.05 s 3.76 s 2.67 s 1.7 8 s A railroads train travels forward along a straight track at 80 n/s for 1000 n and then travels at 50 n/s for the next 1000 m. What is the average velocity? 65.0 m/s 61.5 m/s 63.7 m/s 70.0 m/s

Explanation / Answer

8)

here by using the second equation of motion

d = u * t + 0.5 * a * t^2

d = 5 * 6 + 0.5 * 2 * 6^2

d = 30 + 36

d = 66 m

the correct option is c) 66m

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