撑杆跳高时,使撑杆变弯的力的施力物体是
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撑杆跳高时,人给撑杆一个力,所以使撑杆变弯的力的施力物体是人;
用手拉弹簧时,弹簧发生了弹性形变,弹簧由于要恢复原状就会对跟它接触的物体产生一个力的作用,这个力就是弹力.
故答案为:人;弹性形变.
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