Question

Match the words givne below to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer1. As the child rides in the seat, hisher head and back rest against the padded back of the seat If the car is brought to a rapid stop (as in a head-on collision) the child will continue to move_________ at the before-crash speed untl he/she hits something. 2. The object hit is the back of the seat (supporting the entire back and head) which is padded and as a result the force______ small backward increases decreases forward no whiplash a whiplash large to the maximum value over a time interval.3. Granted this time interval may be_______ but that is considerably better than instantaneous. Also since the head is supported, there will be_______a. Smallb. Backwardc. Increased. Decreasee. Forwardf. No whiplashg. a whiplashh. Large

Answer 1

Answer: forward

The child will continue to move forward at the before the crash speed. This is because the child at the instant of head on collision of the car will tend to continue the state of uniform motion the car exhibited as newton's first law states. Newtons first law: A body will continue to be at rest or in uniform motion with constant velocity/speed unless acted upon by an external force.

Explanation:

The child will continue moving forward until he/she encounters some obstruction or resistance which could be dangerous. In a safety design car, the child should collide with the SRS airbag right in front which gets activated for situations where the acceleration of the car is above 250m/s².

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