The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with acceleration of −5.40 m/s2 for 4.15 s, making straight skid marks 63.3 m long, all the way to the tree. With what speed (in m/s) does the car then strike the tree? m/s (b) What If? If the car has the same initial velocity, and if the driver slams on the brakes at the same distance from the tree, then what would the acceleration need to be (in m/s2) so that the car narrowly avoids a collision? m/s2
The driver of a car slams on the brakes when he sees a tree blocking the...
The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with acceleration of −5.00 m/s2 for 4.15 s, making straight skid marks 64.4 m long, all the way to the tree. With what speed (in m/s) does the car then strike the tree? i got 5.14 which is the the right answer but the second part im lost.. What If? If the car has the same initial velocity, and...
The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with acceleration -5.50 m/s2 for 4.45 s, making straight skid marks 61.1 m long ending at the tree. With what speed does the car then strike the tree? m/s
The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with acceleration of -5.35 m/s2 for 4.00 s, making straight skid marks 61.5 m long, all the way to the tree. With what speed does the car then strike the tree?
The driver of a truck slams on the brakes when he sees a tree blocking the road. The truck slows down uniformly with acceleration −5.70 m/s2 for 4.20 s, making skid marks 57.2 m long that end at the tree. With what speed does the truck then strike the tree?
1. A baseball is hit so that it travels straight upward after being struck by the bat. A fan observes that it takes 3.20 s for the ball to reach its maximum height. (a) Find the ball's initial velocity. (b) Find the height it reaches. 2. The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with acceleration of -5.40 m/s2 for 4.30 s, making straight skid marks 64.6...
A driver is traveling at 30.0 m>s when he sees a moose crossing the road 80.0 m ahead. The moose becomes distracted and stops in the middle of the road. If the driver of the car slams on the brakes, what is the minimum constant acceleration he must undergo to stop short of the moose and avert an accident?
If the truck hits the deer 2.60 seconds after the driver slams on the brakes, what was the speed of the truck, in km/h, when the deer was struck? Assume motion was at constant acceleration. Answer will be 3 sig figs. (Homework Assignment 1 (Chapter 2) Problem C2-04 Constants A truck is traveling at a constant speed of 56.3 km/h Suddenly, the driver sees a deer 23.6 m away and slams on the brakes
The driver of a car traveling on the highway suddenly slams on the brakes because of a slowdown in traffic ahead. A) If the car’s speed decreases at a constant rate from 74 mi/h to 50 mi/h in 3.0 s, what is the magnitude of its acceleration, assuming that it continues to move in a straight line? Answer is in mi/h^2 B) What distance does the car travel during the braking period? Answer is in ft
A car traveling 15.55m/s is 24m from a barrier when the driver slams on the brakes. The car hits the barrier 2.0s later. How fast is the car going at impact?
A car traveling 56 km/h is 22.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.03 s later. (a) What was the car's constant deceleration before impact? m/s2 (b) How fast was the car traveling at impact? m/s